Passenger and Ground Handling Revenue (Details)	6 Months Ended
	Jun. 30, 2014
Delta Connection Agreements | SkyWest Airlines, Inc.
Agreements with other airlines
Term of agreement	5 years 6 months
Delta Connection Agreements | ExpressJet
Agreements with other airlines
Term of agreement	4 years 3 months 18 days
Delta Connection Agreements | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	38
Delta Connection Agreements | CRJ 200 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	64
Delta Connection Agreements | CRJ700 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	19
Delta Connection Agreements | CRJ700 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	41
Delta Connection Agreements | CRJ 900 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	32
Delta Connection Agreements | CRJ 900 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	28
United Express Agreements | SkyWest Airlines, Inc.
Agreements with other airlines
Term of agreement	3 years 9 months 18 days
United Express Agreements | ExpressJet
Agreements with other airlines
Term of agreement	3 years 9 months 18 days
United Express Agreements | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	61
United Express Agreements | CRJ 200 | Atlantic Southeast Airlines,Inc.
Agreements with other airlines
Number of aircraft under contract	14
United Express Agreements | CRJ700 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	70
United Express Agreements | EMB 120 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	9
United Express Agreements | E175 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	8
United Express Agreements | ERJ145 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	22
United Express Agreements | ERJ135 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	9
United Express Agreements | ERJ145 one | ExpressJet
Agreements with other airlines
Number of aircraft under contract	220
Prorate Agreement | SkyWest Airlines, Inc.
Agreements with other airlines
Notice period for termination of agreement	120 days
Prorate Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	10
Prorate Agreement | EMB 120 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	9
United Express Prorate Agreement | SkyWest Airlines, Inc.
Agreements with other airlines
Notice period for termination of agreement	120 days
United Express Prorate Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	20
United Express Prorate Agreement | EMB 120 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	27
Alaska Capacity Purchase Agreement | CRJ700 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	9
US Airways Express Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	10
US Airways Express Agreement | CRJ 900 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	4
US Airways Express Prorate Agreement | SkyWest Airlines, Inc.
Agreements with other airlines
Notice period for termination of agreement	120 days
US Airways Express Prorate Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	1
American Capacity Purchase Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	12
American Capacity Purchase Agreement | CRJ 200 | ExpressJet
Agreements with other airlines
Number of aircraft under contract	11
American Prorate Agreement | SkyWest Airlines, Inc.
Agreements with other airlines
Notice period for termination of agreement	120 days
American Prorate Agreement | CRJ 200 | SkyWest Airlines, Inc.
Agreements with other airlines
Number of aircraft under contract	4