Two flights daily to and from Denver and one flight daily to/from LAX.

The airline also provided introductory Philadelphia fares for flights to/from Denver from $109 for off-peak travel (Tues. and Wed.) and $129 for peak travel, one-way round-trip purchase required, and to/from Los Angeles from $99 for both peak and off-peak travel, one-way round-trip purchase required*. All sale fares must be purchased by 10:00 p.m. MT, Mar. 18, 2004. To make a reservation, customers may visit Frontier's Web site at www.frontierairlines.com, contact Frontier Airlines at 1-800-4321-FLY, or consult their professional travel agent.