Book quickly! Frontier has dropped around 90 routes (counting both directions) to just $29 round-trip for spring travel. Many new routes are offered in this one-day sale and will be much less than the competition. Fares can be bought one-way for $15 on well over 100 routes.

Availability is limited so you must be somewhat flexible to find the lowest price. Travel days will vary by route, but generally are available through May 23, with a 7-day advance purchase required. Many routes have limited frequencies so be sure to check out the specifics in the fare details on your route.

As you can see in the screenshot below, these are essentially FREE airfares. You are only paying mandatory taxes and fees. Frontier even eliminated their online booking fee for these fares so this is the absolute lowest price you can get on these flights. Bag fees are extra unless you can travel with just a small backpack.

Tickets must be booked by 11:59pm, tonight, April 12, or before seats sell out.

A sample of nonstop fares include:

Charlotte to Austin $27 round-trip

Long Island-Islip to Orlando $29 round-trip

Long Island-Islip to West Palm Beach $29 round-trip

Philadelphia to Orlando $29 round-trip

Chicago to Las Vegas $29 round-trip

Indianapolis to Las Vegas $29 round-trip

St. Louis to Las Vegas $29 round-trip

Atlanta to Salt Lake City $29 round-trip

Denver to San Diego $29 round-trip

Detroit to Long Island-Islip $29 round-trip

Chicago to Long Island-Islip $29 round-trip

Cincinnati to San Jose, CA $29 round-trip

Minneapolis to Denver $29 round-trip

Austin to Raleigh $29 round-trip

Providence to Atlanta $29 round-trip

Providence to Orlando $29 round-trip

Milwaukee to Philadelphia $29 round-trip

Birmingham to Philadelphia $29 round-trip

Cleveland to Portland, OR $29 round-trip

Denver to Dallas $29 round-trip

Cincinnati to San Antonio $29 round-trip

Oklahoma City to Orlando $29 round-trip

These fares all work in reverse and there are many more routes as well. Check flights from your city. 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.

Take advantage of these low fares while you can. Frontier is known for starting new service in random markets and ending the service quickly if it doesn't turn a profit. I'm hopeful that most of these new routes will stick around, but it's likely that many of them will only be operated for one season.

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