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: