PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND
    EXCHANGE COMMISSION IN A CONFIDENTAL TREATMENT REQUEST UNDER RULE 24b-2 OF THE SECURITIES
       EXCHANGE ACT OF 1934, AS AMENDED. THE SYMBOL "[***]" IN THIS EXHIBIT INDICATES THAT
                                  INFORMATION HAS BEEN OMITTED.

                                  REGISTRATION RIGHTS AGREEMENT

                                         BY AND BETWEEN
                                     FRONTIER AIRLINES, INC.
                                     AS THE ISSUER, AND THE
                                  HOLDERS REFERRED TO HEREIN OF
                         WARRANTS TO PURCHASE COMMON STOCK, NO PAR VALUE

                                  DATED AS OF FEBRUARY 14, 2003




                          REGISTRATION RIGHTS AGREEMENT

                  THIS REGISTRATION RIGHTS AGREEMENT (the "Agreement") is made and entered into
as of February 14, 2003 by and between FRONTIER AIRLINES, INC., a Colorado corporation (the
"Company"), and the Warrant Holders (as hereinafter defined).

                  WHEREAS, the Company and the Warrant Holders have entered into certain
agreements; and

                  WHEREAS, in order to induce the Warrant Holders to enter into such agreements
with the Company, the Company agreed to issue to the Warrant Holders the Warrants (as
hereinafter defined) and to provide the registration rights set forth in this Agreement to the
Warrant Holders and their respective direct and indirect transferees.

                  The parties hereby agree as follows:

SECTION 1.        DEFINITIONS.  As used in this Agreement, the following terms shall have the following meanings:

                  "Affiliate":  An affiliate of any specified person shall mean any other person
directly or indirectly controlling or controlled by or under direct or indirect common control
with such specified person.  For the purposes of this definition, "control," when used with
respect to any person, means the power to direct the management and policies of such person,
directly or indirectly, whether through the ownership of voting securities, by contract or
otherwise and the terms "affiliated," "controlling" and "controlled" have meanings correlative
to the foregoing.

                  "Agreement":  This Registration Rights Agreement, as the same may be amended,
supplemented or modified from time to time in accordance with the terms hereof.

                  "Business Day":  Each Monday, Tuesday, Wednesday, Thursday and Friday that is
not a day on which banking institutions in New York, New York are authorized or obligated by
law or executive order to close.

                  "Closing Date":  February 14, 2003.

                  "Common Stock":  The common stock, no par value, of the Company or shares of
any class or classes resulting from any recapitalization, reorganization, or reclassification
thereof.

                  "Company":  Frontier Airlines, Inc., a Colorado corporation, and any successor
entity thereto.

                  "Demand Registration":  As defined in Section 2(a) hereof.

                  "Exchange Act":  The Securities Exchange Act of 1934, as amended, and the
rules and regulations promulgated by the SEC thereunder.

                  "Holder":  Each owner of any Registrable Securities.

                  "Prospectus":  The prospectus included in the Registration Statement
(including, without limitation, a prospectus that discloses information previously omitted from
a prospectus filed in reliance upon Rule 430A), as amended or supplemented by any prospectus
supplement, with respect to the resale of any of the Registrable Securities covered by such
Registration Statement, and all other amendments and supplements to any such prospectus,
including post-effective amendments, and all materials incorporated by reference or deemed to
be incorporated by reference, if any, in such prospectus.

                  "Registrable Securities":  The shares of Common Stock issued or issuable upon
exercise of the Warrants (including any shares of Common Stock issued or issuable thereon upon
any stock split, stock combination, stock dividend or the like or as a result of any
anti-dilution adjustments under the Warrants), upon original issuance thereof and at all times
subsequent thereto, and associated related rights, if any, until the earliest of (i) the date
on which the resale thereof has been effectively registered under the Securities Act and such
securities have been disposed of in accordance with the Registration Statement relating
thereto, (ii) the date on which such securities have been distributed to the public pursuant to
Rule 144 or are saleable pursuant to paragraph (k) of Rule 144 (assuming for purposes hereof
that a Warrant Holder having the right to exercise Warrants for 10% or more of the outstanding
Common Stock shall be deemed to be an affiliate), or (iii) the date on which such securities
cease to be outstanding.

                  "Registration Statement":  Any registration statement of the Company filed
with the SEC pursuant to the Securities Act that covers the resale of any Registrable
Securities pursuant to the provisions of this Agreement, including the Prospectus, amendments
and supplements to such registration statement or Prospectus (including pre- and post-effective
amendments), all exhibits thereto, and all material incorporated by reference or deemed to be
incorporated by reference, if any, in such registration statement.

                  "Required Holders":  Holders of more than 50% of the Registrable Securities.
For purposes of the preceding sentence, Registrable Securities owned, directly or indirectly,
by the Company or its Affiliates (other than persons who are Affiliates solely by virtue of
being holders of the Registrable Securities) shall not be deemed outstanding.

                  "Requisite Information":  As defined in Section 2(d) hereof.

                  "Rule 144":  Rule 144 promulgated by the SEC pursuant to the Securities Act,
as such rule may be amended from time to time, or any successor rule or regulation.

                  "Rule 144A":  Rule 144A promulgated by the SEC pursuant to the Securities Act,
as such rule may be amended from time to time, or any successor rule or regulation.

                  "Rule 415":  Rule 415 promulgated by the SEC pursuant to the Securities Act,
as such rule may be amended from time to time, or any successor rule or regulation.

                  "Rule 424":  Rule 424 promulgated by the SEC pursuant to the Securities Act,
as such rule may be amended from time to time, or any successor rule or regulation.

                  "Rule 430A":  Rule 430A promulgated by the SEC pursuant to the Securities Act,
as such rule may be amended from time to time, or any successor rule or regulation.

                  "SEC":  The Securities and Exchange Commission, or any successor governmental
agency or authority thereto.

                  "Securities Act":  The Securities Act of 1933, as amended, and the rules and
regulations promulgated by the SEC thereunder.

                  "Transfer Agent":  The registrar and transfer agent for the Company's Common
Stock.

                  "Warrants":  The warrant issued to the Air Transportation Stabilization Board
to purchase 3,450,551 shares of Common Stock; the warrant issued to [***] to purchase 191,697
shares of Common Stock; and the warrant issued to [***] to purchase 191,697 shares of Common
Stock.

                  "Warrant Holders":  The initial holders of the Warrants set forth on Schedule
I hereto.

SECTION 2.        REGISTRATION STATEMENT.

(a)      DEMAND REGISTRATION UNDER THE SECURITIES ACT.  The Required Holders will be entitled
         to demand, from time to time, upon written request, that the Company file a Registration
         Statement under the Securities Act to effect the registration of all or part of their
         Registrable Securities on, at the option of the Company, Form S-1 or any similar
         long-form registration, or Form S-2 or S-3 or any similar short-form registration, if
         available, for an offering to be made either on a continuous basis pursuant to Rule
         415 or by means of an underwriting.  Each request for a Demand Registration (as
         defined below) shall specify the approximate number of Registrable Securities
         requested to be registered.

(i)      Within ten (10) days after receipt of any such request, the Company will give written notice
         of such requested registration to all other Holders of Registrable Securities and will include
         in such registration all Registrable Securities with respect to which the Company has
         received written requests for inclusion therein within twenty (20) days after the
         receipt of the Company's notice.  All registrations requested pursuant to this
         paragraph 2(a) are referred to herein as "Demand Registrations".  The Company shall
         use its reasonable best efforts to prepare and file any Registration Statement
         pursuant to a Demand Registration and have any such Registration Statement declared
         effective as promptly as reasonably practicable, but in no event later than (i) 180
         days with respect to a Registration Statement regarding resales of Registrable
         Securities on a continuous basis pursuant to Rule 415 and (ii) 240 days with respect
         to a Registration Statement regarding an underwritten offering, in each case, after
         the request for such Demand Registration was made.  Nothing in this Section 2 shall
         operate to limit the right of a Holder of Registrable Securities to request the
         registration of Registrable Securities issuable upon exercise of the Warrants held by
         such Holder notwithstanding the fact that at the time of request, such Holder holds
         only Warrants.

(ii)     The Company will not be obligated to effect a Registration Statement pursuant to a Demand
         Registration made within one hundred and twenty (120) days after the effective date of a
         Registration Statement effected pursuant to a previous Demand Registration.  The
         Company will not be obligated to effect more than three (3) Demand Registrations.

(iii)    If Required Holders of Registrable Securities requesting registration under this Section 2(a)
         intend to distribute the Registrable Securities covered by their request by means of an
         underwriting, they shall so advise the Company as part of their request pursuant to
         this Section 2(a), and the Company shall include such information in the written
         notice sent to the Holders of Registrable Securities pursuant to this Section 2(a).
         In such event, the right of a Holder to registration pursuant to this Section 2(a)
         shall be conditioned upon such Holder's participation in such underwriting and the
         inclusion of such Holder's Registrable Securities in the underwriting and upon the
         completion by the Holder of all questionnaires, powers of attorney, indemnities and
         other documents reasonably required under the terms of such underwriting
         arrangements.  The Company shall, together with all Holders of Registrable Securities
         requesting to distribute their securities through such underwriting, enter into an
         underwriting agreement in customary form with the managing underwriter.  If a Holder
         has requested inclusion in such registration as provided above but does not agree to
         the terms of any such underwriting, such Holder's Registrable Securities shall be
         excluded therefrom by written notice from the Company or the managing underwriter.
         The selection of investment banker(s) and manager(s), which investment banker(s) and
         manager(s) shall be nationally recognized, shall be made by the Holders of a majority
         of the Registrable Securities being so registered, subject to approval of the Company,
         which approval will not be unreasonably withheld or delayed.

(iv)     The Company shall not grant to any person any rights to request the Company to register any
         equity securities of the Company, or any securities convertible or exchangeable into or
         exercisable for such securities, that are more favorable than the rights granted
         pursuant to this Agreement, without providing the same or equivalent rights to the
         Holders.

(v)      The Holders of Registrable Securities demanding a Demand Registration pursuant to this Section
         2(a) may, at any time prior to the effective date of any Registration Statement filed pursuant
         to this Section 2(a), revoke such request by providing written notice to the Company.
         Such request will not count toward the three (3) Demand Registrations permitted under
         this Section 2(a), provided such Holders promptly reimburse the Company for all
         reasonable out-of-pocket expenses relating to the preparation of such withdrawn
         Registration Statement.  If such Holders elect not to reimburse the Company for such
         reasonable out-of-pocket expenses, then such request will count toward the three (3)
         Demand Registrations permitted under this Section 2(a).  Notwithstanding any other
         provisions of this paragraph, any underwritten offering commenced but not completed
         due to a suspension of sales by the Company pursuant to Section 2(e) and any
         revocation by the Holders due to a material adverse change in the Company's business,
         financial condition or operating results will not count toward the three (3) Demand
         Registrations permitted under this Section 2(a).

(vi)     Whenever the Company shall effect a registration pursuant to this Section 2(a), no securities
         other than Registrable Securities shall be included among the securities covered by such
         registration unless the Holders of not less than 66 ?% of all Registrable Securities
         to be covered by such registration shall have consented in writing to the inclusion of
         such other securities.

(b)      PIGGYBACK REGISTRATION RIGHTS.  The Company shall afford each Holder of Registrable Securities
         the opportunity to include such Registrable Securities in any registration statement filed
         for purposes of a public offering of securities of the Company of the same class as
         the Registrable Securities or which are convertible into or exercisable for such class
         of securities (including, without limitation a public offering made on a continuous
         basis pursuant to Rule 415) (other than registration statements for which the Company
         has contractually agreed not to grant such rights and other than a registration on
         Form S-4 or Form S-8, or any successor or other forms promulgated for similar
         purposes); provided that if the proposed registration does not proceed, the Company
         shall give written notice thereof to each Holder of Registrable Securities that
         requested inclusion in such registration and thereupon, the Company shall be relieved
         of its obligation to register any Registrable Securities in such registration.  If, in
         the written opinion of the managing underwriter of any such offering in the case of an
         underwritten offering, the total amount of securities to be so registered including
         such Registrable Securities, will exceed the maximum amount of the Company's
         securities which can be marketed without adversely affecting the offering (including
         the price as which such securities can be sold), then the Company shall be entitled to
         reduce the number of shares of Registrable Securities to be included in such offering
         to zero.  Any such reduction shall be allocated among all such Holders and other
         holders of piggyback registration rights in proportion (as nearly as practicable) to
         the amount of registrable securities owned by each holder at the time of filing the
         registration statement.  Each Holder desiring to include the Registrable Securities
         held by it in any such registration statement shall notify the Company in writing
         within 15 days after receipt of notice from the Company of its intent to file such a
         registration statement.  If a Holder decides not to include all of the Registrable
         Securities held by it in any registration statement thereafter filed by the Company,
         such Holder shall nevertheless continue to have the right to include any Registrable
         Securities in any subsequent registration statement or registration statements (other
         than registration statements for which the Company has contractually agreed not to
         grant such rights) as may be filed by the Company with respect to offerings of its
         securities (including, without limitation a public offering made on a continuous basis
         pursuant to Rule 415), all upon the terms and conditions set forth herein.  No
         registration effected under this Section 2(b) shall relieve the Company of its
         obligation to effect any Demand Registration under Section 2(a) hereof.

(c)      SUPPLEMENTS AND AMENDMENTS.  The Company shall use reasonable best efforts to keep any
         Registration Statement regarding Registrable Securities continuously effective by supplementing
         and amending such Registration Statement if so required by the rules, regulations or
         instructions applicable to the registration form used for such Registration Statement,
         by the Securities Act, or, if reasonably requested by the Required Holders or by any
         underwriter of such Registrable Securities and in any event for a period not to exceed
         the earlier of (i) 270 days or (ii) the date on which the sale of the Registrable
         Securities covered by such Registration Statement is complete, unless such
         Registration Statement relates to securities offered on a continuous basis pursuant
         Rule 415 in which case the Company's obligations under this paragraph shall continue
         until the sale of the Registrable Securities covered by such Registration Statement is
         complete.  If a Registration Statement under Section 2(a) ceases to be available for
         use by the Holders because the Company no longer qualifies to use such form of
         registration statement, the Company shall be required to file, as promptly as
         reasonably practicable, a new Registration Statement on an appropriate form and its
         obligations hereunder shall continue to apply in all respects.

(d)      SELLING SECURITYHOLDER INFORMATION.  Each Holder wishing to sell Registrable Securities pursuant
         to a Registration Statement and related Prospectus shall furnish to the Company, in a
         timely manner, such information regarding itself and the distribution of its
         Registrable Securities as is required by the rules and regulations of the Securities
         Act to be disclosed by the Holder in the Registration Statement (the "Requisite
         Information").  The Company shall not be required to include in the Registration
         Statement and related Prospectus the Registrable Securities of any Holder that does
         not provide the Company with the Requisite Information in accordance with this Section
         2(d).  Each Holder requesting registration hereunder shall promptly notify the Company
         of any material changes to the Requisite Information provided to the Company by such
         Holder, and the Company shall use best efforts to file, as soon as practicable after
         the receipt of any changes in the Requisite Information with respect to such Holder
         (including, without limitation, any changes in the plan of distribution), a Prospectus
         supplement pursuant to Rule 424 or otherwise amend or supplement such Registration
         Statement to include in the Prospectus the Requisite Information as to such Holder
         (and the Registrable Securities held by such Holder), and the Company shall provide
         such Holder a copy of such Prospectus as so amended or supplemented containing the
         Requisite Information in order to permit such Holder to comply with the Prospectus
         delivery requirements of the Securities Act in a timely manner with respect to any
         proposed disposition of such Holder's Registrable Securities and to file the same with
         the SEC.  Notwithstanding the foregoing, following the effective date of any
         Registration Statement, the Company shall not be required to file more than one such
         supplement or post-effective amendment to reflect changes in the amount of Common
         Stock constituting Registrable Securities held by any particular Holder at the request
         of such Holder in any 30-day period.  The Company may take reasonable steps to
         aggregate the addition of Registrable Securities of more than one Holder for purposes
         of filing amendments to any Registration Statement or supplements to the Prospectus so
         as to reduce the need for multiple amendments or supplements; provided that the
         Company shall not use this sentence to delay the filing of any amendment or supplement
         beyond any such 30-day period.

(e)      MATERIAL EVENTS; SUSPENSION OF SALES.  Notwithstanding the provisions contained in this
         Section 2, with respect to any Registration Statement, the Company may (for a period not to
         exceed 60 consecutive days, and not in any event to exceed 90 days in the aggregate during any
         12 month period) suspend use of such Registration Statement at any time if (and for so
         long as) the continued use thereof would require the Company to disclose a material
         financing, acquisition, other transaction or other material non-public information,
         which disclosure the Board of Directors of the Company shall have determined in good
         faith is not in the best interests of the Company and the Company's stockholders.  The
         Company shall notify each registered Holder, the Transfer Agent and the managing
         underwriters, if any, that the use of the Prospectus is to be suspended until the
         Company shall deliver a written notice that the use of the Prospectus may be resumed.
         During such suspension, the use of the Prospectus shall be suspended, and the Company
         shall not be required to maintain the effectiveness of, or amend or update the
         Registration Statement, or amend or supplement the Prospectus.

(f)      ADDITIONAL AGREEMENTS OF HOLDERS.  Each Holder agrees not to dispose of Registrable
         Securities pursuant to any Registration Statement without complying with the prospectus
         delivery requirements under the Securities Act and the provisions of paragraph (e) above
         regarding use of the Prospectus.  Each Holder further agrees that it will comply fully
         with applicable federal and state securities laws in connection with the distribution
         of any Registrable Securities pursuant to the Registration Statement.  Each Holder
         further acknowledges having been advised by the Company that applicable federal
         securities laws prohibit such Holder from trading in securities of the Company at any
         time while such Holder is in possession of material nonpublic information about the
         Company.

SECTION 3.        REGISTRATION PROCEDURES.  In connection with the Company's registration obligations
hereunder, and subject to and in accordance with the provisions of Section 2 hereof, the Company shall
effect such registrations on the appropriate form selected by the Company to permit the resale
of Registrable Securities in accordance with the Holder's intended method or methods of
disposition thereof, and pursuant thereto the Company shall as expeditiously as reasonably
possible:

(a)      Furnish to the Holders and the managing underwriters, if any, copies of all such documents
         proposed to be filed (excluding, unless requested, those documents incorporated or deemed
         to be incorporated by reference and then only to the Holder who so requested) and use its
         best efforts to reflect in each such document, when so filed with the SEC, such
         comments regarding a Holder as have been reasonably proposed and delivered by such
         Holder to the Company in a timely manner.  The Company shall not file any Registration
         Statement or related Prospectus or any amendments or supplements thereto (excluding
         any document that would be incorporated or deemed incorporated by reference) to which
         the representative of the Required Holders or the managing underwriters, if any, shall
         reasonably object in writing (by hand delivery, courier guaranteeing overnight
         delivery or telecopy) within two Business Days after the receipt of such documents.
         Notwithstanding the foregoing, the Company shall not be required to furnish to the
         Holders or the managing underwriters, if any, any amendments or supplements to the
         Registration Statement or Prospectus filed solely to reflect changes to the amount of
         Common Stock constituting Registrable Securities held by any particular Holder or
         immaterial revisions to the information contained therein.

(b)      Prepare and file with the SEC such amendments, including post-effective amendments, to the
         Registration Statement as may be necessary to keep such Registration Statement continuously
         effective for the applicable time period set forth in Section 2(c) hereof; cause the
         related Prospectus to be supplemented by any required Prospectus supplement, and as so
         supplemented to be filed pursuant to Rule 424 (or any similar provisions then in
         force) under the Securities Act; and comply with the provisions of the Securities Act
         with respect to the disposition of all securities covered by such Registration
         Statement and Prospectus during such period in accordance with the intended method or
         methods of disposition by the Holder set forth in such Registration Statement as so
         amended or in such Prospectus as so supplemented including, without limitation, the
         filing of any Prospectus supplement pursuant to Rule 424 in order to add or change any
         selling security holder information (including any such supplements or amendments
         pursuant to Section 2(d) hereof, provided such Holder to which such change applies
         complies with the Requisite Information requirements of Section 2(d) hereof in a
         timely manner).

(c)      Notify the Holders and the managing underwriters, if any, promptly and, if requested by any
         such person, confirm such notice in writing:

(i)      (A) when a Prospectus or any Prospectus supplement or post-effective amendment is filed and
         (B) with respect to a Registration Statement or any post-effective amendment, when the same has
         become effective;

(ii)     regarding any Registration Statement filed pursuant to Section 2(a) hereof, of any written
         comments from the SEC with respect to any filing and of any request by the SEC or any other
         Federal or state governmental authority for amendments or supplements to such Registration
         Statement or related Prospectus or for additional information related thereto;

(iii)    of the issuance by the SEC, any state securities commission, any other governmental agency or
         any court of any stop order, order or injunction suspending or enjoining the use or
         effectiveness of the Registration Statement or the initiation of any proceedings for
         that purpose;

(iv)     of the receipt by the Company of any notification with respect to the suspension of
         qualification or exemption from qualification of any of the Registrable Securities for sale
         in any jurisdiction, or the initiation or threatening of any proceeding for such purpose;

(v)      of the existence of any fact or the happening of any event that makes any statement of
         material fact made in such Registration Statement or related Prospectus untrue in any material
         respect, or that requires the making of any changes in such Registration Statement or
         Prospectus so that, in the case of the Registration Statement, it will not contain any
         untrue statement of a material fact or omit to state any material fact required to be
         stated therein or necessary to make the statements therein not misleading and that, in
         the case of the Prospectus, such Prospectus will not contain any untrue statement of a
         material fact or omit to state any material fact required to be stated therein or
         necessary to make the statements therein, in light of the circumstances under which
         they were made, not misleading; and

(vi)     of the determination by the Company that a post effective amendment to the Registration
         Statement will be filed with the SEC.

(d)      Use best efforts to obtain the withdrawal of any stop order or order enjoining or suspending
         the use or effectiveness of a Registration Statement or the lifting of any suspension of the
         qualification (or exemption from qualification) of any of the Registrable Securities
         for sale in any jurisdiction, at the earliest practicable moment.

(e)      If reasonably requested by the Required Holders, or managing underwriters, if any, (i) to
         promptly include in a Prospectus supplement or post-effective amendment such information as the
         Required Holders (only regarding the Required Holders) or managing underwriters, if
         any, may reasonably request to be included therein; and (ii) make all required filings
         of such Prospectus supplement or such post effective amendment as soon as reasonably
         practicable after the Company has received notification of such matters to be included
         in such Prospectus supplement or post effective amendment.

(f)      Furnish to each Holder who so requests, and each managing underwriter, if any, without charge,
         at least one copy of the Registration Statement and each amendment thereto (but excluding
         schedules, all documents incorporated or deemed to be incorporated therein by
         reference and all exhibits, unless requested in writing by such Holder or any managing
         underwriter and then only to the person who so requested).

(g)      Deliver to each Holder and the underwriters, if any, without charge, as many copies of the
         Prospectus or Prospectuses (including each form of Prospectus) and each amendment or supplement
         thereto as such persons may reasonably request; and, unless the Company shall have
         given notice to such Holder or underwriter pursuant to Section 2(e), the Company
         hereby consents to the use of such Prospectus, and each amendment or supplement
         thereto, by each of the selling Holders of Registrable Securities and the
         underwriters, if any, in connection with the offering and sale of the Registrable
         Securities covered by such Prospectus and any amendment or supplement thereto.

(h)      Prior to any public offering of Registrable Securities, use all reasonable efforts to register
         or qualify, or cooperate with the Holders of Registrable Securities to be sold or
         tendered or the underwriters, if any, and their respective counsel in connection with
         the registration or qualification (or exemption from such registration or
         qualification) of such Registrable Securities for offer and sale under the securities
         or Blue Sky laws of such jurisdictions within the United States as any Holder or
         underwriter reasonably requests in writing, keep each such registration or
         qualification (or exemption therefrom) effective during the period the Registration
         Statement is required to be kept effective and do any and all other acts or things
         legally necessary to enable the disposition in such jurisdictions of the Registrable
         Securities covered by the Registration Statement; provided, however, that the Company
         shall not be required to qualify generally to do business in any jurisdiction where it
         is not then so qualified, take any action that would subject it to general service of
         process in any such jurisdiction where it is not then so subject or subject the
         Company to any tax in any such jurisdiction where it is not then so subject.

(i)      In connection with any sale or transfer of Registrable Securities that will result in such
         securities no longer being Registrable Securities, cooperate with the Holders and the managing
         underwriters, if any, to (i) facilitate the timely preparation and delivery of
         certificates representing Registrable Securities to be sold, which certificates shall
         not bear any restrictive legends, unless required by applicable securities laws and
         (ii) enable such Registrable Securities to be in such denominations and registered in
         such names as the managing underwriters, if any, or Holders may reasonably request at
         least two Business Days prior to any sale of Registrable Securities.

(j)      Upon the occurrence of any event contemplated by Section 3(c)(v) hereof, as promptly as
         reasonably practicable (subject to any suspension of sales pursuant to Section 2(e) hereof),
         prepare a supplement or amendment, including, if appropriate, a post-effective
         amendment, to the Registration Statement or a supplement to the related Prospectus or
         any document incorporated or deemed to be incorporated therein by reference, and file
         any other required document so that, as thereafter delivered, such Prospectus will not
         contain an untrue statement of a material fact or omit to state a material fact
         required to be stated therein or necessary to make the statements therein, in light of
         the circumstances under which they were made, not misleading (except, upon occurrence
         of an event contemplated by Section 3(c)(v) hereof, to the extent that the Company
         determines in good faith that the disclosure of such event at such time would not be
         in the best interests of the Company and the Company's stockholders provided that any
         such delay in disclosure pursuant to this Section 3(j) shall be considered a
         suspension of the Registration Statement subject to the limitation in Section 2(e)).

(k)      Enter into such agreements (including any underwriting agreements in form, scope and substance
         as may be reasonably requested and as are customary in underwritten offerings, which may include
         indemnification and contribution provisions in favor of underwriters and other persons
         in addition to, or in substitution for, the provisions of Section 5 hereof) and take
         all such other appropriate actions in connection therewith (including those reasonably
         requested by the managing underwriters, if any, or the Holders of a majority in
         interest of the Registrable Securities being sold) in order to expedite or facilitate
         the sale of such Registrable Securities.  In connection with any underwritten
         offering, the Company will:

(i)      make such representations and warranties to the Holders of such Registrable Securities and the
         underwriters, with respect to the business of the Company and its subsidiaries
         (including with respect to businesses or assets acquired or to be acquired by any of
         them), and the Registration Statement, Prospectus and documents, if any, incorporated
         or deemed to be incorporated by reference therein, in each case, in form, substance
         and scope as are customarily made by issuers to underwriters in underwritten
         offerings, and confirm the same if and when requested;

(ii)     obtain, as may reasonably be required, opinions of counsel to the Company (which may include
         in-house counsel) and updates thereof (which counsel and opinions (in form, scope and
         substance) shall be reasonably satisfactory to the managing underwriters, if any,
         addressed to each selling Holder of Registrable Securities and each of the
         underwriters, covering the matters customarily covered in opinions requested in
         underwritten offerings (including any such matters as may be reasonably requested by
         such underwriters));

(iii)    obtain, as may reasonably be required, customary "cold comfort" letters and updates thereof
         from the independent certified public accountants of the Company (and, if necessary, any other
         independent certified public accountants of any subsidiary of the Company or of any
         business acquired by the Company for which financial statements and financial data
         are, or are required to be, included in the Registration Statement), addressed (where
         reasonably possible) to each selling Holder of Registrable Securities and each of the
         underwriters, such letters to be in customary form and covering matters of the type
         customarily covered in "cold comfort" letters in connection with underwritten
         offerings; and

(iv)     deliver such documents and certificates as may be reasonably requested by the Holders of a
         majority in interest of the Registrable Securities being sold and the underwriters, to evidence
         the continued validity of the representations and warranties made pursuant to clause
         (i) of this Section 3(k) and to evidence compliance with any customary conditions
         contained in the underwriting agreement or other agreements entered into by the
         Company.

(l)      Make available for inspection by a representative of the Holders of Registrable Securities
         being sold, any underwriter participating in any such disposition of Registrable Securities,
         if any, and any attorney, consultant or accountant retained by such selling Holders or
         underwriter, at the offices where normally kept, during reasonable business hours, all
         financial and other records, pertinent corporate documents and properties of the
         Company and its subsidiaries (other than records and documents that the Company and
         its subsidiaries agreed contractually not to disclose and the disclosure of which
         would violate such contractual arrangement) as they may reasonably request, and cause
         the officers, directors, agents and employees of the Company and its subsidiaries to
         supply all information (other than information that the Company and its subsidiaries
         agreed contractually not to disclose and the disclosure of which would violate such
         contractual arrangement) in each case reasonably requested by any such representative,
         underwriter, attorney, consultant or accountant in connection with such Registration
         Statement and as shall be reasonably necessary to enable such persons to conduct a
         reasonable investigation within the meaning of Section 11 of the Securities Act;
         provided, however, that the foregoing inspection and information gathering shall be
         coordinated on behalf of the Holders and the other parties thereto by one counsel
         designated by and on behalf of such Holders and other parties and provided further,
         that such persons shall first agree in writing with the Company that any information
         that is reasonably and in good faith designated by the Company as confidential at the
         time of delivery or inspection (as the case may be) of such information shall be kept
         confidential by such persons, unless (i) disclosure of such information is required by
         court or administrative order or is necessary to respond to inquiries of regulatory
         authorities; (ii) disclosure of such information is required by law; (iii) such
         information becomes generally available to the public other than as a result of a
         disclosure or failure to safeguard by any such person; or (iv) such information
         becomes available to any such person from a source other than the Company and such
         source is not known to be bound by a confidentiality agreement.

(m)      (i) list all shares of Common Stock covered by any Registration Statements on any securities
         exchange on which the Common Stock is then listed; or (ii) authorize for quotation on the
         National Market of the National Association of Securities Dealers Automated Quotation System
         ("Nasdaq") all Common Stock covered by all such Registration Statements if the Common
         Stock is then so authorized for quotation.

(n)      Use its best efforts to cause Registrable Securities covered by a Registration Statement to
         be registered with or approved by such governmental agencies or authorities as may be
         necessary to enable the seller or sellers thereof to consummate the disposition of
         such Registrable Securities.

(o)      Make all reasonable efforts to provide such information as is required for any filings
         required to be made with the National Association of Securities Dealers, Inc. ("NASD").

SECTION 4.        REGISTRATION EXPENSES.  All fees and expenses incident to the performance of or
compliance with this Agreement by the Company shall be borne by it whether or not any Registration
Statement is filed or becomes effective.  The fees and expenses referred to in the foregoing sentence
shall include:

(a)      all registration, filing, securities exchange (including Nasdaq) listing, rating agency and
         stock exchange (including Nasdaq) fees and expenses;

(b)      printing expenses (including, without limitation, printing Prospectuses if the printing of
         Prospectuses is required by the managing underwriters, if any, or by the Holders of a majority
         in interest of the Registrable Securities);

(c)      messenger, copying, telephone and delivery expenses;

(d)      reasonable fees and disbursements of counsel for the Company;

(e)      fees and disbursements of all independent certified public accountants referred to in Section
         3(k)(iii) including, without limitation, the expenses of any special audits or "cold comfort"
         letters required by Section 3(k)(iii);

(f)      fees and expenses of all other persons retained by the Company;

(g)      all registration, filing, qualification and other fees and expenses of complying with securities
         or blue sky laws of all jurisdictions in which the Registrable Securities are to be registered
         in accordance with Section 3(h) hereof, and any legal fees and expenses incurred in
         connection with the blue sky qualifications of the Registrable Securities and the
         determination of their eligibility for investment under the laws of all such
         jurisdictions; and

(h)      the reasonable fees and disbursements incurred by the Holders of the Registrable Securities
         being registered (including, without limitation, the reasonable fees and disbursements for
         one counsel or firm of counsel selected by the Holders of a majority in interest of
         the Registrable Securities being registered).  Notwithstanding anything in this
         Agreement to the contrary, the Holders shall be responsible for all expenses
         customarily borne by selling securityholders (including underwriting discounts,
         commissions and fees and expenses of counsel to the selling Holders to the extent not
         required to be paid by the Company pursuant to this clause (h)).

SECTION 5.        INDEMNIFICATION.

(a)      The Company agrees to indemnify and hold harmless each Holder of Registrable Securities,
         such Holder's affiliates, and their respective officers, directors, employees, representatives
         and agents, and each person, if any, who controls any Holder of Registrable Securities
         within the meaning of either Section 15 of the Securities Act or Section 20 of the
         Exchange Act, against any and all loss, liability, claim or damage arising out of any
         untrue statement or alleged untrue statement of a material fact contained in the
         Registration Statement or the Prospectus (or any amendment or supplement thereto), or
         the omission or alleged omission to state therein any material fact required to be
         stated therein or necessary to make the statements therein, in the light of the
         circumstances under which they were made, not misleading; provided, however, that this
         indemnity agreement shall not apply to any loss, liability, claim or damage arising
         out of any untrue statement or omission or alleged untrue statement or omission made
         in reliance upon and in conformity with written information furnished to the Company
         by or on behalf of such Holder of Registrable Securities or any person, if any, who
         controls any such Holder of Registrable Securities expressly for use in the
         Registration Statement (or any amendment thereto), or any preliminary prospectus or
         the Prospectus (or any amendment or supplement thereto); provided, further, that this
         indemnity agreement shall not apply to any loss, liability, claim or damage (i)
         arising from an offer or sale of Registrable Securities occurring during any
         suspension of sales pursuant to Section 2(e) (provided that the Company has given to
         the Holder notice of such suspension prior to such offer or sale), or (ii) if the
         Holder fails to deliver at or prior to the written confirmation of sale, the most
         recent Prospectus, as amended or supplemented, and such Prospectus, as amended or
         supplemented, would have corrected such untrue statement or omission or alleged untrue
         statement or omission of a material fact (provided that the Company has delivered to
         such Holder, or otherwise given notice to such Holder of the existence of, such most
         recent Prospectus, as supplemented or amended).  Any amounts advanced by the Company
         to an indemnified party pursuant to this Agreement shall be returned to the Company if
         it shall be finally determined in a judgment by a court of competent jurisdiction not
         subject to appeal, that such indemnified party was not entitled to indemnification.

(b)      In connection with the preparation of the Registration Statement in which a Holder of
         Registrable Securities is participating in furnishing information relating to such Holder
         of Registrable Securities to the Company for use in such Registration Statement, any
         preliminary prospectus, the Prospectus or any amendments or supplements thereto, each
         such Holder agrees, severally and not jointly, to indemnify and hold harmless any
         other Holders of Registrable Securities, the Company, its affiliates and their
         respective officers, directors, employees, representatives and agents, and each
         person, if any, who controls such other Holders or the Company within the meaning of
         either such Section, against any and all loss, liability, claim or damage described in
         the indemnity contained in subsection (a) of this Section, as incurred, but only with
         respect to untrue statements or omissions, or alleged untrue statements or omissions,
         made in the Registration Statement (or any amendment thereto), or any preliminary
         prospectus or the Prospectus (or any amendment or supplement thereto) in reliance upon
         and in conformity with written information furnished to the Company by or on behalf of
         such Holder of Registrable Securities or any person, if any, who controls any such
         Holder of Registrable Securities expressly for use in the Registration Statement (or
         any amendment thereto) or such preliminary prospectus or the Prospectus (or any
         amendment or supplement thereto).

(c)      Each indemnified party shall give notice as promptly as reasonably practicable to each
         indemnifying party of any action commenced against it in respect of which indemnity may be
         sought hereunder, but failure to so notify an indemnifying party shall not relieve such
         indemnifying party from any liability hereunder to the extent it is not prejudiced as
         a result thereof and in any event shall not relieve it from any liability which it may
         have otherwise than on account of this indemnity agreement.  The indemnifying party,
         upon request of the indemnified party, shall retain counsel reasonably satisfactory to
         the indemnified party to represent the indemnified party and any others the
         indemnifying party may designate in such proceeding and shall pay the reasonable fees
         and disbursements of such counsel related to such proceeding.  In any such proceeding,
         any indemnified party shall have the right to retain its own counsel, but the fees and
         expenses of such counsel shall be at the expense of such indemnified party unless (i)
         the indemnifying party and the indemnified party shall have mutually agreed to the
         retention of such counsel or (ii) the named parties to any such proceeding (including
         any impleaded parties) include both the indemnifying party and the indemnified party
         and representation of both parties by the same counsel would be inappropriate due to
         actual or potential differing interests between them.  It is understood that the
         indemnifying party shall not, in respect of the legal expenses of any indemnified
         party in connection with any proceeding or related proceedings in the same
         jurisdiction, be liable for (a) the fees and expenses of more than one separate firm
         (in addition to any local counsel), for the Holders of Registrable Securities, and all
         persons, if any, who control the Holders of Registrable Securities within the meaning
         of either Section 15 of the Securities Act or Section 20 of the Exchange Act,
         collectively (unless representation of all Holders and such parties by the same
         counsel would be inappropriate due to actual or potential differing interests between
         or among them), and (b) the fees and expenses of more than one separate firm (in
         addition to any local counsel), for the Company and each person, if any, who controls
         the Company within the meaning of either such Section, and that all fees and expenses
         payable under (a) and (b) above shall be reimbursed as they are incurred.  In the case
         of any such separate firm for the Holders of Registrable Securities, and control
         persons of the Holders of Registrable Securities, such firm shall be designated by the
         Holders of a majority in interest of the Registrable Securities and shall be
         reasonably acceptable to the Company.  In the case of any such separate firm for the
         Company and control persons of the Company, such firm shall be reasonably acceptable
         to the Holders of a majority in interest of the Registrable Securities.  The
         indemnifying party shall not be liable for any settlement of any proceeding effected
         without its written consent (which consent shall not be unreasonably withheld or
         delayed), but if settled with such consent or if there be a final non-appealable
         judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified
         party from and against any loss or liability by reason of such settlement or
         judgment.  No indemnifying party shall, without the prior written consent of the
         indemnified parties (which consent shall not be unreasonably withheld or delayed),
         settle or compromise or consent to the entry of any judgment with respect to any
         litigation, or any investigation or proceeding by any governmental agency or body,
         commenced or threatened, or any claim whatsoever in respect of which indemnification
         or contribution could be sought under this Section 5 (whether or not the indemnified
         parties are actual or potential parties thereto), unless such settlement, compromise
         or consent (i) includes an unconditional release of each indemnified party from all
         liability arising out of such litigation, investigation, proceeding or claim and (ii)
         does not include a statement as to or an admission of fault, culpability or a failure
         to act by or on behalf of any indemnified party.  No indemnified party shall, without
         the prior written consent of the indemnifying party, settle or compromise or consent
         to the entry of any judgment with respect to any litigation, or any investigation or
         proceeding by any governmental agency or body, commenced or threatened, or any claim
         whatsoever in respect of which indemnification or contribution could be sought under
         this Section 5 (whether or not the indemnified parties are actual or potential parties
         thereto).

(d)      If the indemnification to which an indemnified party is entitled under this Section 5 is
         for any reason unavailable to or insufficient although applicable in accordance with its
         terms to hold harmless an indemnified party in respect of any losses, liabilities, claims,
         damages or expenses referred to therein, then each indemnifying party shall contribute
         to the aggregate amount of such losses, liabilities, claims, damages and expenses
         incurred by such indemnified party, as incurred, in such proportion as is appropriate
         to reflect the relative fault of the indemnifying party or parties on the one hand and
         of the indemnified party on the other hand in connection with the statements or
         omissions which resulted in such losses, liabilities, claims, damages or expenses, as
         well as any other relevant equitable considerations.

                  The relative fault of the Company on the one hand and the Holders of the
         Registrable Securities on the other hand shall be determined by reference to, among
         other things, whether any such untrue or alleged untrue statement of a material fact
         or omission or alleged omission to state a material fact relates to information
         supplied by the Company or by the Holder of the Registrable Securities and the
         parties' relative intent, knowledge, access to information and opportunity to correct
         or prevent such statement or omission.

                  The parties hereto agree that it would not be just and equitable if
         contribution pursuant to this Section 5(d) were determined by pro rata allocation or
         by any other method of allocation which does not take account of the equitable
         considerations referred to above in this Section 5(d).  The aggregate amount of
         losses, liabilities, claims, damages, and expenses incurred by an indemnified party
         and referred to above in this Section 5(d) shall be deemed to include any
         out-of-pocket legal or other expenses reasonably incurred by such indemnified party in
         investigating, preparing or defending against any litigation, or any investigation or
         proceeding by any governmental agency or body, commenced or threatened, or any claim
         whatsoever based upon any such untrue or alleged untrue statement or omission or
         alleged omission.

                  Notwithstanding the provisions of this Section 5, no Holder shall be required
         to indemnify or contribute any amount in excess of the amount by which the total price
         at which Registrable Securities were sold by such Holder exceeds the amount of any
         damages that such Holder has otherwise been required to pay by reason of such untrue
         or alleged untrue statement or omission to alleged omission.

                  No person guilty of fraudulent misrepresentation (within the meaning of
         Section 11(f) of the Securities Act) shall be entitled to contribution from any person
         who was not guilty of such fraudulent misrepresentation.

                  The remedies provided in this Section 5 are not exclusive and shall not limit
         any rights or remedies which may otherwise be available to any indemnified party at
         law or in equity.

                  For purposes of this Section 5(d), each person, if any, who controls any
         Holder of Registrable Securities within the meaning of Section 15 of the Securities
         Act or Section 20 of the Exchange Act shall have the same rights to contribution as
         such Holder, and each person, if any, who controls the Company within the meaning of
         Section 15 of the Securities Act or Section 20 of the Exchange Act shall have the same
         rights to contribution as the Company.  No party shall be liable for contribution with
         respect to any action, suit, proceeding or claim settled, compromised, or with respect
         to which the party requesting contribution consented to the entry of a judgment,
         without such party's written consent, which consent shall not be unreasonably withheld
         or delayed.

(e)      The agreements contained in this Section 5 shall survive the transfer or sale of the
         Registrable Securities and shall remain in full force and effect, regardless of any
         termination or cancellation of this Agreement or any investigation made by or on behalf of
         any indemnified party.

SECTION 6.        INFORMATION REQUIREMENTS.

(a)      The Company agrees that, if at any time until the Registrable Securities cease to be
         Registrable Securities the Company is not subject to the reporting requirements of the
         Exchange Act, it will cooperate with any Holder of Registrable Securities and use reasonable
         efforts to take such further reasonable action as any Holder of Registrable Securities
         may reasonably request in writing to enable such Holder to sell Registrable Securities
         without registration under the Securities Act within the limitation of the exemptions
         provided by Rule 144 and Rule 144A, if available, under the Securities Act (or any
         similar rule or regulation hereafter adopted by the SEC) and customarily taken in
         connection with sales pursuant to such exemptions, including, without limitation,
         making available adequate current public information within the meaning of paragraph
         (c)(2) of Rule 144 and delivering, upon request, the information required by paragraph
         (d) of Rule 144A.  Notwithstanding the foregoing, nothing in this Section 6 shall be
         deemed to require the Company to register any of its securities under any section of
         the Exchange Act.

(b)      The Company shall file reports required to be filed by it under the Exchange Act and any securities
         exchange (including Nasdaq) on which the Common Stock is listed.

SECTION 7.        UNDERWRITTEN REGISTRATION.  Notwithstanding any other provision of this Agreement,
but subject to the provisions of Section 2(b) hereof, if the underwriter determines in good faith that
marketing factors require a limitation of the number of Registrable Shares to be underwritten,
the number of Registrable Shares that may be included in the underwriting shall be allocated on
a pro rata basis.

SECTION 8.        MISCELLANEOUS.

(a)      OTHER REGISTRATION RIGHTS.  Subject in all cases to Section 2(a)(vi) hereof, the Company
         may in the future grant registration rights that would permit any person that is a third party
         the right to piggy-back on a Registration Statement; provided, however, that if the
         managing underwriter, if any, of such offering notifies the Holders that the total
         amount of Registrable Securities which they and the holders of such piggy-back rights
         intend to include in the Registration Statement is so large as to materially adversely
         affect the success of such offering (including the price at which such securities can
         be sold), then the amount, the number or kind of securities offered for the account of
         holders of such piggy-back rights will be reduced to the extent necessary to reduce
         the total amount of securities to be included in such offering to the amount, number
         or kind recommended by the managing underwriter before the amount of Registrable
         Securities to be included is reduced.

(b)      NO INCONSISTENT AGREEMENTS.  The Company has not entered and shall not enter into any
         agreement that is inconsistent with the rights granted to the Holders in this Agreement or
         otherwise conflicts with the provisions hereof.  The rights granted to the Holders hereunder
         do not in any way conflict with and are not inconsistent with the rights granted to the
         holders of the Company's other issued and outstanding securities under any such
         agreements.

(c)      NO ADVERSE ACTION AFFECTING THE REGISTRABLE SECURITIES.  The Company will not take any
         action with respect to the Registrable Securities with an intent to adversely affect the ability
         of any of the Holders to include such Registrable Securities in a registration
         undertaken pursuant to this Agreement.

(d)      AMENDMENTS AND WAIVERS.  The provisions of this Agreement, including the provisions of
         this sentence, may not be amended, modified or supplemented, and waivers or consents to departures
         from the provisions hereof, may not be given, without the written consent of the
         Company and the Required Holders.  Notwithstanding the foregoing, a waiver or consent
         to depart from the provisions hereof with respect to a matter that relates exclusively
         to the rights of Holders whose Registrable Securities are being sold pursuant to the
         Registration Statement and that does not directly or indirectly affect the rights of
         other Holders may be given by Holders of a majority in interest of the Registrable
         Securities being sold by such Holders pursuant to such Registration Statement,
         provided, however, that the provisions of this sentence may not be amended, modified,
         or supplemented except in accordance with the provisions of the immediately preceding
         sentence.  Each Holder of Registrable Securities outstanding at the time of any such
         amendment, modification, supplement, waiver or consent or thereafter shall be bound by
         any such amendment, modification, supplement, waiver or consent effected pursuant to
         this Section 8(d), whether or not any notice, writing or marking indicating such
         amendment, modification, supplement, waiver or consent appears on the Registrable
         Securities or is delivered to such Holder.

(e)      NOTICES.  All notices and other communications provided for herein or permitted hereunder
         shall be made in writing by hand-delivery, courier guaranteeing overnight delivery, certified
         first-class mail, return receipt requested, or telecopy and shall be deemed given (i)
         when made, if made by hand delivery, (ii) upon confirmation, if made by telecopier,
         (iii) one Business Day after being deposited with such courier, if made by overnight
         courier or (iv) on the date indicated on the notice of receipt, if made by first-class
         mail, to the parties as follows:

(i)      if to a Holder, to the address of such Holder as it appears in Schedule I, or, if not so
         specified, in the Common Stock or Warrants register of the Company, as applicable.  Failure
         to mail a notice or communication to a Holder or any defect in such notice or communication
         shall not affect its sufficiency with respect to other Holders.

(ii)     if to the Company to:

                                    Frontier Airlines, Inc.
                                    7001 Tower Road
                                    Denver, Colorado 80249
                                    Attention: General Counsel
                                    Telephone No.: (720) 374-4200
                                    Facsimile: (720) 374-4379

(iii)    If to a Warrant Holder, to the address of such Warrant Holder set forth on Schedule I.

(f)      SUCCESSORS AND ASSIGNS.  This Agreement shall inure to the benefit of and be binding upon
         the successors and permitted assigns of each of the parties and shall inure to the benefit of
         each existing and future Holder.  The Company may not assign its rights or obligations
         hereunder without the prior written consent of the Holders of a majority in interest
         of the Registrable Securities, other than by operation of law pursuant to a merger or
         consolidation to which the Company is a party.

(g)      COUNTERPARTS.  This Agreement may be executed in any number of counterparts by the parties
         hereto, each of which when so executed shall be deemed to be an original and all of which taken
         together shall constitute one and the same instrument.

(h)      GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH FEDERAL
         LAW, IF AND TO THE EXTENT SUCH FEDERAL LAW IS APPLICABLE, AND OTHERWISE IN ACCORDANCE WITH THE
         LAWS OF THE STATE OF NEW YORK, AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE
         STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

(i)      SEVERABILITY.  If any term, provision, covenant or restriction of this Agreement is held by
         a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the
         remainder of the terms, provisions, covenants and restrictions set forth herein shall
         remain in full force and effect and shall in no way be affected, impaired or invalidated,
         and the parties hereto shall use their best efforts to find and employ an alternative
         means to achieve the same or substantially the same result as that contemplated by
         such term, provision, covenant or restriction, it being intended that all of the
         rights and privileges of the parties shall be enforceable to the fullest extent
         permitted by law.

(j)      HEADINGS.  The headings in this Agreement are for convenience of reference only and shall not
         limit or otherwise affect the meaning hereof.  All references made in this Agreement to
         "Section" and "paragraph" refer to such Section or paragraph of this Agreement, unless
         expressly stated otherwise.

(k)      ENTIRE AGREEMENT.  This Agreement (together with Section 7 of the Warrants) is intended by
         the parties as a final expression of their agreement and is intended to be a complete and
         exclusive statement of the agreement and understanding of the parties hereto in
         respect of the subject matter contained herein and the registration rights granted by
         the Company with respect to the Registrable Securities.  There are no restrictions,
         promises, warranties or undertakings, other than those set forth or referred to
         herein, with respect to the registration rights granted by the Company with respect to
         the Registrable Securities.  This Agreement supersedes all prior agreements and
         undertakings among the parties solely with respect to such registration rights.

(l)      TERMINATION.  This Agreement and the obligations of the parties hereunder shall terminate
         when all of the securities issued or issuable upon exercise of the Warrants cease to be
         Registrable Securities, except for any liabilities or obligations under Sections 4 or
         5 hereof.

(m)      SPECIFIC PERFORMANCE.  The parties agree that, to the extent permitted by law, (i) the
         obligations imposed on them in this Agreement are special, unique and of an extraordinary
         character, and that in the event of a breach by any such party, damages would not be
         an adequate remedy; and (ii) each of the other parties shall be entitled to specific
         performance and injunctive and other equitable relief in addition to any other remedy
         to which it may be entitled at law or in equity.

(n)      HOLDBACK AGREEMENT.  If any such registration shall be in connection with an underwritten
         public offering, each Holder of Registrable Securities agrees not to effect any public sale
         or distribution, including any sale pursuant to Rule 144 under the Securities Act, of
         any equity securities of the Company, or of any security convertible into or
         exchangeable or exercisable for any equity security of the Company (in each case,
         other than as part of such underwritten public offering), within 7 days before, or
         such period not to exceed 120 days as the underwriting agreement may require (or such
         lesser period as the managing underwriters may permit) after, the effective date of
         such registration (except as part of such registration), and the Company hereby also
         so agrees and agrees to use its best efforts to cause each other holder of any equity
         security, or of any security convertible into or exchangeable or exercisable for any
         equity security, of the Company purchased from the Company (at any time other than in
         a public offering) to so agree.





                  IN WITNESS WHEREOF, the parties have caused this Registration Rights Agreement
to be duly executed as of the date first written above.


                                                     FRONTIER AIRLINES, INC.


                                                     By:                                            
                                                        Name:
                                                        Title:

                                                     AIR TRANSPORTATION STABILIZATION
                                                     BOARD



                                                     By:                                            
                                                        Name:
                                                        Title:

                                                     [***]


                                                     By:                                            
                                                        Name:
                                                        Title:

                                                     [***]


                                                     By:                                            
                                                        Name:
                                                        Title:








                                           SCHEDULE I

                                   Schedule of Warrant Holders

          1.      Air Transportation Stabilization Board
                  1120 Vermont Avenue, Suite 970
                  Washington, D.C.  20005
                  Attention:  Executive Director
                  Facsimile: (202) 622-3420

                  with a copy to:

                  United States Department of the Treasury
                  1500 Pennsylvania Avenue, N.W.
                  Washington, D.C.  20220
                  Attention:        Deputy Assistant Secretary
                  (Government Financial Policy)
                  Facsimile: (202) 622-0387

         2.

                  [***]

                  with a copy to:

                  [***]

          3.

                  [***]

                  with a copy to:

                  [***]