Southwest Airlines Sale: Save up to 50% [Book by June 6]

Updated: June 5, 2025, 10:17am CDT

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Table of Contents

Southwest Sale Details
Recap on Recent Southwest Changes
Final Thoughts

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Southwest Airlines is offering cheap flights, offering customers a discount of up to 50% when you book tickets by June 6, 2025. The sale was just extended, so you have 1 more day to take advantage of the savings.

With this offer, you can travel throughout summer and fall — and even into December on some routes — though eligible dates vary by destination. Here’s everything you need to know about Southwest’s latest sale.

Southwest Sale Details

You need a promo code for this sale, and you must book by June 6 at 11:59 p.m. PT and at least 21 days before departure. The full terms are on the promotion’s landing page, and you’ll need to use promo code WOWZERS for this offer.

This sale offers up to 50% off base fares on Southwest flights, and the eligible travel dates vary by destination:

Travel within the continental U.S. between August 12 and December 17, 2025.
- Not valid for travel on Sundays.
Interisland Hawaiian flights between June 24 and October 1, 2025.
- Only valid on Tuesdays and Wednesdays.
Travel to or from Hawaii, Puerto Rico, and international destinations from August 17 to December 11, 2025.
- From the continental U.S. to Hawaii and international destinations, you can travel Sunday to Wednesday.
- From Hawaii and international destinations to the continental U.S., you can travel Tuesday to Friday.
- Travel from the continental U.S. to or from Puerto Rico, travel Monday to Thursday.
Blackout dates include the following:
- Flights within the continental U.S.: September 1, October 13, November 21-26, and November 28-December 1, 2025.
- To Hawaii, Puerto Rico, and international destinations: August 28-September 2 and November 20-24, 2025
- To the continental U.S. from Hawaii, Puerto Rico, and international destinations: August 28-September 2 and November 28-December 2, 2025
- Interisland Hawaii flights: August 28-September 2, 2025

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

Use promo code WOWZERS to get the savings.
Sale prices apply to Basic and Wanna Get Away Plus 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 St. Louis (STL) to Chicago Midway (MDW) that you can book for $67 in Basic and $82 for Wanna Get Away Plus, rather than $119 and $149, respectively:

Southwest WOWZERS STL MDW cash fare — 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.

Since Southwest Rapid Rewards is a revenue-based program, sales also apply to flights booked using 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 WOWZERS STL MDW points price — 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.

Recap on Recent Southwest Changes

Remember that Southwest recently introduced basic fares (to replace the previous Wanna Get Away) and ended its popular “everyone gets 2 free checked bags” policy on May 28, 2025. Now, the number of free checked bags you’ll get, if any, depends on what credit cards you hold and whether you have elite status with Southwest Airlines.

Final Thoughts

Southwest has a flash sale advertising savings of up to 50% off flights, though the actual discount you find when searching for flights will vary. If you book by June 6, you might be able to find a nice discount on your summer, fall, or early winter travel plans

Remember that the cheapest fares now book into Southwest’s Basic fare type, and the airline is applying its new baggage policy to all bookings made after May 28, 2025. That means you may not qualify for free checked bags when booking the cheapest tickets, and that’s worth considering as you look at ticket prices.