Save on spring/summer travel with the current 15% off promo sale from Frontier.
Travel periods will vary by route, ranging from April 14 thorugh August 15. Be sure to check our fare details for specifics.
Enter promo code SAVE15 when booking to apply discount to the base fare.
Tickets must be booked by 11:59pm ET, February 17.
Fares are nonstop and include:
Denver to Columbus $142 round-trip
San Antonio to Las Vegas $125 round-trip
Philadelphia to San Antonio $159 round-trip
San Antonio to Atlanta $125 round-trip
Colorado Springs to Las Vegas $97 round-trip
All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.