Exhibit 31.1

Certification

I, Jeff Potter, certify that:

1.I have reviewed this Amendment No. 1 on Form 10-Q/A to the quarterly report on Form 10-Q of Frontier Airlines, Inc.; and

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

DateNovember 10, 2005

By:	/s/ Jeff S. Potter
	Jeff S. Potter
	President and Chief Executive Officer