Memorial Day
40
%
Promo code
Verified
We recommend
Expires Jun 3, 2026
Applied 98 times
+1
10
%
Promo code
Verified
Only Today
Applied 13 times
35
%
Promo code
Verified
Expires Jul 1, 2026
Applied 133 times
15
%
Promo code
Verified
Expires Jul 1, 2026
Applied 53 times
30
%
Promo code
Verified
Expires Jul 1, 2026
Applied 24 times
Sign up to receive week deals
Expired, but try! The codes might work
25
%
Promo code
The Special Offer is expired
Applied 134 times
40
%
Promo code
The Special Offer is expired
Applied 63 times
Promo code
The Special Offer is expired
Applied 41 times
40
%
Promo code
The Special Offer is expired
Applied 58 times
When is the best time to buy at Southwest Airlines?
The number of active promo codes by month
0
2
4
6
8
10+
Jan
5
Feb
5
Mar
5
Apr
7
May
3
Jun
4
Jul
4
Aug
6
Sep
10
Oct
10
Nov
8
Dec
6
Promo frequency:
Rare
<
1
new promo code per month
Promo availability:
High
5
active promo codes available
How to use a coupon code on Southwest Airlines?
-
Select a ServiceChoose the service that interests you.
-
Enter Booking DetailsFill in the required booking details, such as departure and arrival dates, destination, and the number of passengers for a flight.
-
Find the Promo Code FieldOn the same tab, look for the “Promo Code” field.
-
Apply the Promo CodeEnter your promo code and enjoy its effect on the total cost.
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Why You Can Trust Our Deals
At DiscountReactor, we combine smart AI tools and careful editorial work to show you only accurate "up-to-date" and truly useful offers. AI helps us quickly filter and pre-test coupons, while editors manually check the results, adjust the reliability rating based on confirmed validity and keep the pages clean without unnecessary “noise.”We monitor stores daily, conduct regular manual content reviews, update or remove any problematic coupons within 24 hours on business days. We clearly mark coupons as "Verified", "Expired" or "Editor's Choice" work with partner stores on content accuracy, and always put your interests first by showing only fresh and working offers without unnecessary clutter. Rankings are based on popularity, coupon validity and user interest.
New Southwest Airlines Coupon Codes May 2026
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Reviewed byAndrew Priobrazhenskyi
Editor & Deals Expert View codes again Southwest.com
