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 $54 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 21 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. This list is not always accurate so it doesn't hurt to try any route and see if it will discount travel within the dates listed above.

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, July 31, 2018.

A sample of fares include:

Atlanta to Tampa $54 roundtrip, nonstop

Fort Lauderdale to New Orleans $54 roundtrip, nonstop

Boston to Atlanta $55 roundtrip, nonstop

San Diego to Las Vegas $56 roundtrip, nonstop

Boston to Chicago $57 roundtrip, nonstop

Houston to Las Vegas $57 roundtrip, nonstop

Richmond to Fort Lauderdale $57 roundtrip, nonstop

Detroit to Myrtle Beach $105 roundtrip, nonstop

Atlanta to Baltimore $106 roundtrip, nonstop

New York to Fort Lauderdale $108 roundtrip, nonstop

Boston to Los Angeles $108 roundtrip

Columbus to Las Vegas $113 roundtrip, nonstop

Cleveland to Los Angeles $113 roundtrip, nonstop

New Orleans to Las Vegas $113 roundtrip, nonstop

Minneapolis to Los Angeles $114 roundtrip, nonstop

Boston to Las Vegas $115 roundtrip, nonstop

Baltimore to Dallas $118 roundtrip, nonstop

Newark to Los Angeles $118 roundtrip

Cleveland to Las Vegas $120 roundtrip, nonstop

New York to Las Vegas $126 roundtrip

Detroit to Los Angeles $127 roundtrip, nonstop

Baltimore to Las Vegas $128 roundtrip, nonstop

Philadelphia to Los Angeles $137 roundtrip, nonstop

Fort Lauderdale to Guatemala $192 roundtrip, nonstop

Detroit to Santo Domingo $331 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.

All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.

More Stories You'll Love