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Southwest Airlines is offering a new promo code for up to 40% off the base fare of one-way or round-trip bookings made with cash or Rapid Rewards points. This offer is available for new reservations made by June 11, 2026, for travel across most of the airline's network.
Here's what you need to know about Southwest's newest up-to-40%-off promo code.
Southwest Airlines Promo Code for 40% Off
Now through June 11, 2026, Southwest flyers can use the promo code “FLYWOW” to save up to 40% off the base fare of revenue or award flights. This sale applies to qualifying one-way or round-trip Basic, Choice, Choice Preferred, and Choice Extra fares booked through Southwest channels.
That sounds great at first. However, travel is only valid on certain days of the week and there are a few blackout dates to contend with, which can make it challenging to find a discounted fare that works for you. Plus, Southwest is known to avoid discounting its cheapest fares, which negates the value of the promo code.
Southwest promo code key details
- Promo code: FLYWOW
- Discount: Up to 40% off base fare (excludes taxes and fees)
- Book by: June 11, 2026, at 11:59 PM PT
- Travel period:
- Continental U.S.: August 4 through December 16, 2026
- Interisland Hawaii: June 29 through August 19, 2026
- Continental U.S. to/from international destinations, Hawaii, and Puerto Rico: August 4 through December 16, 2026
- Advance purchase requirement: None specified
- Blackout dates:
- Continental U.S.: September 7, October 9, October 12, November 20–25, and November 27–30, 2026
- Continental U.S. → international destinations, Hawaii, and Puerto Rico: September 3–8 and November 19–25, 2026
- International destinations, Hawaii, and Puerto Rico → Continental U.S.: September 3–8 and November 27–December 1, 2026
- Days travel is valid:
- Continental U.S.: Monday–Saturday
- Interisland Hawaii: Monday–Thursday
- Continental U.S. → Hawaii/international: Sunday–Wednesday
- Hawaii/international → Continental U.S.: Tuesday–Friday
- Puerto Rico routes: Monday–Thursday
- Route exclusions: None specified
- Eligibility: Valid on cash or Rapid Rewards bookings (all fare classes); discount applies to new reservations only; changes to the itinerary after purchase will eliminate promotion eligibility
- Where to book: Southwest.com or Swabiz.com
Southwest Airlines recently overhauled its fare structure and introduced fees for checked bags and seat selection. Make sure to review the full inclusions (or lack thereof) of your selected fare class before completing your booking.
Related: Remember to Reprice Your Flights and Hotels to Save Money. Here's How.
How Effective Is This Southwest Airlines Promo Code?
Southwest rolls out promo codes pretty frequently, but not every deal is a slam dunk. While these offers are often limited to higher-priced fares, that wasn’t the case this time. On most routes we tested, the “FLYWOW” code applied to the lowest-priced Basic, Choice, Choice Preferred, and Choice Extra fares.
The biggest catch is that it's tough (though not impossible) to find a true 40% discount. In fact, some fares are discounted by far less than 40%. To give you an idea of what we're seeing, here are a couple of examples.
- Between now and the end of the travel window, Southwest is offering one-way Basic fares from Las Vegas (LAS) to Anchorage (ANC) starting at $178 or 13,000 Rapid Rewards points. Before the discount, the same fare cost $274 or 21,500 points (plus taxes and fees). That's a 35% discount on the cash fare and roughly a 40% discount on the award fare.
- Southwest flies nonstop from Baltimore (BWI) to Los Angeles (LAX), where you can book a Basic fare from $124 or 7,500 points (plus taxes and fees). Based on the advertised pre-sale pricing, that's a savings of 35% on the cash fare and 38% on the award fare.
All that said, if you're planning any upcoming travel on Southwest, this is a promo code worth applying.
How to Get More Southwest Points
If you've found something that works for you but need more Southwest points for a redemption, you can transfer Chase Ultimate Rewards to Southwest or convert Bilt Rewards Points at a 1:1 transfer ratio. AwardWallet data shows that transfers are typically instant. Alternatively, you can transfer several types of hotel points to Southwest, including Marriott Bonvoy points at a 3:1 transfer ratio:
While it won't help you with this promotion, you can stock up on Ultimate Rewards points by applying for the Chase Sapphire Preferred® Card (Rates & Fees), which is currently offering a 75,000-point bonus after you spend $5,000 on purchases in the first 3 months from account opening.
- Earn 75,000 bonus points after you spend $5,000 on purchases in the first 3 months from account opening.
- Enjoy benefits such as 5x on travel purchased through Chase Travel℠, 3x on dining, select streaming services and online groceries, 2x on all other travel purchases, 1x on all other purchases
- Earn up to $50 in statement credits each account anniversary year for hotel stays through Chase Travel℠
- 10% anniversary points boost - each account anniversary you'll earn bonus points equal to 10% of your total purchases made the previous year.
- Count on Trip Cancellation/Interruption Insurance, Auto Rental Collision Damage Waiver, Lost Luggage Insurance and more.
- Complimentary DashPass which unlocks $0 delivery fees & lower service fees for a min. of one year when you activate by 12/31/27. Plus, a $10 promo each month on non-restaurant orders.
- Member FDIC
- 5X points on Lyft rides through September 2027
- 5X points on travel purchased through Chase Travel℠
- 3X points on dining at restaurants worldwide
- 3X points on eligible streaming services
- 3X points on online grocery purchases (excluding Target, Walmart, and wholesale clubs)
- 2X points on all other travel
- 1X point per dollar spent on all other purchases
Our Take
Southwest's new up-to-40%-off fare sale is yours to take advantage of through June 11, 2026. While there are deals to be found, the cheapest fares fall into the Basic category, which means they can't be changed. But if you want to test your luck, don’t forget to apply the “FLYWOW” promo code.
For rates and fees of the cards mentioned in this post, please visit the following links: Chase Sapphire Preferred® Card (Rates & Fees)
