The latest promo code sale on Spirit Airlines allows you to take up to 75% off the base fare for travel this summer and fall. Fares start at just $49 roundtrip.

Just enter promo code 75PCT when booking on to apply a 75% discount to the base fare for roundtrip travel on Tuesdays, Wednesdays, and Saturdays, from August 28 through December 12. Avoid blackout dates on September 1, October 6, and November 15-27.

The discount will only apply to the base fare and not to taxes nor Spirit's booking fees so don't expect to see that large of a price drop on certain routes. There is also a list of excluded markets for this sale. However, I found that if you start your search directly from the sale page, all routes are being discounted, even if they are listed as excluded.

If you are unfamiliar with Spirit, please read our guide on How to Fly Spirit Airlines.

Promo code expires at 11:59 pm ET, tonight, August 21, 2018.

A sample of fares include:

Atlanta to Orlando $49 roundtrip, nonstop

Oakland to Las Vegas $55 roundtrip, nonstop

Chicago to Boston $56 roundtrip, nonstop

Detroit to Atlanta $57 roundtrip, nonstop

Hartford to Fort Lauderdale $57 roundtrip, nonstop

Kansas City to Orlando $57 roundtrip, nonstop

Orlando to Asheville $57 roundtrip, nonstop

Minneapolis to Denver $58 roundtrip, nonstop

Seattle to Las Vegas $59 roundtrip, nonstop

Boston to Atlanta $62 roundtrip, nonstop

Los Angeles to Minneapolis $105 roundtrip, nonstop

Atlanta to Newark $110 roundtrip, nonstop

Detroit to Los Angeles $111 roundtrip, nonstop

Boston to Las Vegas $113 roundtrip, nonstop

Cleveland to Las Vegas $113 roundtrip, nonstop

Phoenix to Fort Lauderdale $118 roundtrip

Newark to Los Angeles $118 roundtrip

Philadelphia to San Diego $128 roundtrip

Philadelphia to Las Vegas $134 roundtrip, nonstop

Los Angeles to Boston $134 roundtrip

Orlando to San Salvador $194 roundtrip, nonstop

Newark to Santo Domingo $245 roundtrip, nonstop

New York to Panama $298 roundtrip

Routes listed as excluded, but are discounting when searching from the sale page. This bug may be corrected at any time.

Houston to Denver $55 roundtrip, nonstop

Denver to Chicago $58 roundtrip, nonstop

Detroit to Orlando $60 roundtrip, nonstop

Columbus to Las Vegas $115 roundtrip, nonstop

Atlanta to Los Angeles $120 roundtrip, nonstop

Newark to New Orleans $123 roundtrip, nonstop

Newark to Las Vegas $128 roundtrip, nonstop

Detroit to San Diego $134 roundtrip, nonstop

Denver to Bogota $279 roundtrip

Boston to Guayaquil $316 roundtrip

There are many more routes available as well. Domestic routes will work in reverse. Lowest fares may not be available for the entire travel period. You'll have to decline any extras to get the lowest price.

Spirit's Bare Fares only include one small personal item (small backpack, large purse, briefcase, etc.) that will fit underneath your seat. Checked baggage starts at $30 each way. Larger carry-on bag fees start at $35 each way.

Header image by Ken Wolter via Shutterstock.

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