Southwest Airlines Sale: Flights From $39 or 2,500 Points [Book by April 24]

Updated: April 22, 2025, 2:56pm CDT

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Southwest Sale Details
Final Thoughts

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Southwest Airlines is offering cheap flights, starting at $39 or 2,500 points, when you book tickets by April 24, 2025.

With this offer, you can travel throughout spring, summer, and early fall, though eligible dates vary by destination. Here’s everything you need to know about Southwest’s latest sale.

Southwest Sale Details

You don’t need a promo code for this sale, but you must book by April 24 at 11:59 p.m. PT and at least 21 days before departure. The full terms are on the promotion’s landing page.

This sale has Southwest flights starting at $39 or 2,500 points one-way, and the eligible travel dates vary by destination:

Travel within the continental U.S. between May 13 and October 2, 2025
- Valid on Monday, Tuesday, Wednesday, and Thursday
- Blackout on September 1, 2025
Interisland Hawaiian flights between May 13 and July 2, 2025
- Only valid on Tuesdays and Wednesdays
Travel to or from Hawaii, Puerto Rico, and international destinations from August 17 to October 2, 2025
- Valid on Sunday, Monday, Tuesday, and Wednesday, leaving the continental U.S. (except San Juan, Puerto Rico, which is valid on Monday, Tuesday, Wednesday, and Thursday)
- Only valid on Tuesday, Wednesday, Thursday, and Friday, flying to the continental U.S.

The sale only applies to flights booked directly with Southwest. Here are a few more terms you should be aware of:

Sale prices apply to Wanna Get Away fares only.
Valid on one-way fares.
Any changes to an itinerary after purchase will eliminate qualifications for this promotion and result in the forfeiture of any promo code’s savings.
Seats, days, and markets are limited.
Flights are non-refundable.

Here’s an example of a discounted ticket from Houston (HOU) to Austin (AUS) that you can book for as low as $39 with this sale:

Southwest flight — Image Credit: Southwest

Remember, Southwest has an easy-to-use Low Fare Calendar to help you find the cheapest dates when your travel plans are flexible.

Southwest fare calendar — Image Credit: Southwest

This sale also applies to bookings made with Southwest Rapid Rewards points. Unfortunately, you won’t get outsized value: expect to get around 1.1 to 1.5 cents per point from your Rapid Rewards points.

Southwest award flight — Image Credit: Southwest

If you use one of Southwest’s co-branded credit cards to pay for your tickets, you could earn 2 to 4 Rapid Rewards points per $1 spent on your Southwest purchases. These cards also have other perks like anniversary bonus points every cardmember year, EarlyBird Check-In certificates, and more.

Hot Tip:

This sale doesn’t apply to existing bookings, so if you find your same flight is now available at a lower price, you can book it and cancel your existing reservation. Here’s how to change or cancel a Southwest flight.

Final Thoughts

Southwest has a flash sale offering flights from $39 or 2,500 points one-way. There are blackout dates, and eligible travel dates vary depending on where you fly. However, if you book by April 24, you might be able to find a nice discount on your summer travel.

These tickets will qualify for Southwest’s existing baggage rules before the airline reduces the checked luggage allowance and makes other changes at the end of May. That’s because those changes will only apply to tickets booked after May 28 — after the booking period for this sale has ended.