Southwest Airlines offers
40% Off Base Fare on
Select US Flights when you
book by September 17, 2026, and travel between
October 5, 2026 - March 3, 2027.
Note: Select travel dates/blackout period will apply. Pricing/seating will vary on travel dates. Please check the low fare calendar for pricing/flight dates
Thanks to Deal Hunter
serra for finding this deal.
Top Comments
Community Reviews
Southwest's 40 percent off base fare promo looks strongest for flexible travelers chasing specific routes or off peak times, especially where Southwest offers more direct service. The deal can be improved with Southwest gift cards from DoorDash at 10 percent off, and one Austin to Tampa round trip came in at $219. But the sale often hides behind inflated base fares, airport and carrier fees, and hard to search fare calendars, so the final price can land above last week's fares or even above Alaska, Delta, or other airlines.
Some travelers report finding a low round-trip fare of $219 for Austin, TX to Tampa during the promo window.
Southwest can offer more direct flights for travelers in the PNW compared with other carriers.
Gift cards purchased through DoorDash at 10% off can help sweeten the overall cost of Southwest travel.
Southwest's 40% discount can be hard to verify because search results and the fair calendar may not clearly surface the advertised savings.
Several checks show inflated or "bogus sale" pricing, including cases where fares rose by about $500 versus the prior week.
Southwest promo pricing can come out higher than competing airlines on the same route and dates, such as SAN-PVR versus Alaska.
Airport, 911, and carrier fees can consume most of the ticket price, so 40% off base fare may not translate into meaningful total savings.
Common Questions (4)
AI-generated summary based on comments from the community. Updated ago
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!
34 Comments
Sign up for a Slickdeals account to remove this ad.
Southwest does suck. It's the truth
For absolutely everywhere, you're not wrong!
I'm not telling you what to be happy for. I'm telling you it is not a slick deal at all anymore. That is the point, it appears to be a deal for you in MDW, but not the majority of SW customers at all. No slickdeal, but a subpar lukewarm deal for customers outside MDW. SW used to have sales that were for more than 1 airport. That is why people dislike SW now & SW is subpar now.
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!