Book fast! Frontier is having a promo code sale valid for purchase through today. Save 90% off the base fare for travel through May 16. Fares start at just $37 round-trip.
Use promo code SAVE90 when booking on FlyFrontier.com to take 90% off the base fare for nonstop domestic flights. Travel is valid on Tuesdays and Wednesdays through May 16.
The discount does not apply to taxes nor Frontier's online booking fee, which they label a "Carrier Interface Charge". This means some routes still won't have a very big price drop even with the big sticker shock of 90% off. However, there are plenty of routes where we are seeing very large discounts so you may be able to save big if you can travel in the middle of the week.
There is a long list of specific routes excluded from the promo code sale. Frontier operates about half of their markets on limited days each week. Click on the fare details for more info.
Tickets must be booked by 11:59pm ET, on April 10.
A sample of nonstop fares include:
Detroit to Long Island-Islip $37 round-trip
Minneapolis to Long Island-Islip $37 round-trip
Salt Lake City to Las Vegas $50 round-trip
Cincinnati to Raleigh $50 round-trip
Philadelphia to Charleston $51 round-trip
Madison to Philadelphia $51 round-trip
Denver to Boise $63 round-trip
New York to Cincinnati $68 round-trip
Charlotte to Austin $68 round-trip
Seattle to Colorado Springs $69 round-trip
St. Louis to Orlando $70 round-trip
Cleveland to Portland, OR $70 round-trip
Trenton to Nashville $70 round-trip
Raleigh to Las Vegas $72 round-trip
Las Vegas to Tampa $72 round-trip
Providence to Denver $74 round-trip
Philadelphia to Kansas City $75 round-trip
Atlanta to San Jose, CA $75 round-trip
Philadelphia to Miami $76 round-trip
Los Angeles to Atlanta $76 round-trip
Washington D.C. to Las Vegas $78 round-trip
Austin to Washington D.C. $84 round-trip
Atlanta to San Juan $98 round-trip
Many more routes are available and these fares all work in reverse as well. Lowest fares may not be available throughout the entire travel period. Check our pages for all flights to Denver, Las Vegas, Orlando, Tampa, Philadelphia, Cleveland, Austin, Raleigh, and San Jose to see more of today's finds. This is not a full list of Frontier cities, so check flights from your city to see what's available.
Keep in mind that Frontier charges extra for any bags larger than a small personal item (small backpack, large purse, etc.). Pack super light to get the lowest price. Checked bag fees start at $25 each way. Larger carry-on bag fees start at $30 each way.