Frontier's Black Friday sale is a pretty good one if you are flexible with travel dates and can book by midnight ET, tonight. Save up to 99% off the base fare on your next Frontier flight for late fall or winter travel on select travel dates only. This sale includes a few Friday and Sunday travel dates, which means you may be able to score a super cheap weekend getaway. Fares start at just $32 roundtrip.

Use promo code SAVE99 when booking on FlyFrontier.com to take 99% off the base fare for nonstop domestic flights on the following dates:

November: 28-30

December: 1, 4-5, 8, 11-15, 17, 19

January: 8-16, 19-20, 23-26, 28-31

February: 2, 5-7

While the promo code does not apply to taxes nor Frontier's online booking fee, which is labeled a "Carrier Interface Charge", the fact that it does take 99% off the base fare means that these are the some of the lowest fares we ever see on most of these routes. Occasionally, Frontier has lower fares with flash sales on less popular routes when it eliminates or lowers the online booking fee, but the most popular routes rarely dip this low. The discount can also be applied to one-way flights.

If you are unfamiliar with Frontier Airlines, please read our guide on Everything You Need to Know Before You Fly Frontier.

There are specific routes excluded from this promo code sale. You also may have to click around to find available dates since Frontier operates about half of its route network on just a few days each week, and the schedule can change from month to month. Click on the fare details for more info on exact dates each route is available.

Tickets must be booked by 11:59 pm ET, tonight, November 23, 2018.

A sample of nonstop fares include:

Greenville to Tampa $32 roundtrip

Charlotte to Tampa $35 roundtrip

Atlanta to Orlando $37 roundtrip

Kansas City to Denver $37 roundtrip

Grand Rapids to Tampa $49 roundtrip

Cincinnati to Denver $49 roundtrip

Denver to Dallas $49 roundtrip

Sacramento to Las Vegas $49 roundtrip

Cincinnati to San Deigo $59 roundtrip

Denver to Charlotte $66 roundtrip

Philadelphia to Austin $67 roundtrip

Atlanta to Salt Lake City $67 roundtrip

Denver to Nashville $67 roundtrip

Philadelphia to Denver $67 roundtrip

Raleigh to San Diego $67 roundtrip

Denver to Austin $67 roundtrip

Chicago to Denver $67 roundtrip

Cleveland to Phoenix $67 roundtrip

Milwaukee to Las Vegas $67 roundtrip

San Francisco to Atlanta $68 roundtrip

Washington D.C. to Austin $68 roundtrip

Cincinnati to Phoenix $68 roundtrip

Washington D.C. to Denver $68 roundtrip

Pittsburgh to Denver $68 roundtrip

Cleveland to San Diego $68 roundtrip

Indianapolis to San Diego $68 roundtrip

These fares all work in reverse and there are many more routes available as well. Lowest fares may not be available throughout the entire travel period. You'll have to decline all extras to get the lowest price.

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 $30 each way. Larger carry-on bag fees start at $35 each way.

If you want to avoid all extra fees, read How to Pack in Just a Personal Item Sized Bag.

Header image via Shutterstock.