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serra | Staff 33.6K Views
Sep 14, 2026 1:33 PM

Southwest Airlines: Select US Flights

40% Off Base Fare

(Travel October 5 - March 3, 2027)at Southwest Airlines
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Deal Details
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.

Editor's Notes

Written by johnny_miller | Staff
  • Offer terms:
    • Up to 40 percent off promotion savings valid for qualifying one-way or round trip fares booked on Southwest.com or swabiz.com from September 14, 2026 at 12:01 a.m. Pacific Time ("PT") through September 17, 2026 11:59 p.m. PT (the "Booking Period"), and flown between October 5, 2026-March 3, 2027 (the "Travel Period"). Interisland Hawaii travel not included. Continental U.S travel blacked out October 12, November 20-November 25, November 28-November 30, December 18, 2026-January 4, February 12, and February 15, 2027. Continental U.S. travel to international, Hawaii, St. Thomas, and Puerto Rico blacked out November 19-25 and December 17, 2026-January 5, 2027. Continental U.S. travel from international, Hawaii, St. Thomas, and Puerto Rico blacked out November 27-December 1 and December 17, 2026-January 5, 2027. Continental U.S. travel valid Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, and Saturdays. Travel from continental U.S. to Hawaii, St. Thomas, and international is valid Sundays, Mondays, Tuesdays, and Wednesdays. Travel to continental U.S. from Hawaii, St. Thomas, and international is valid Tuesdays, Wednesdays, Thursdays, and Fridays. Travel to/from Puerto Rico is valid Mondays, Tuesdays, Wednesdays, and Thursdays. Service is subject to seasonal scheduling and may not operate year-round. Seasonal service to Anchorage operates until September 14, 2026. Promotion savings are applied before government taxes and fees. Discount is automatically applied and shown as a strikethrough on the displayed base fare on eligible flights. Seats, days, and markets are limited. Discount availability may vary by destination, flight, and day of the week, and won't be available on some flights that operate during very busy travel times and holiday periods.
    • Discount is valid on new reservations only. Discount will apply only for select flights booked within the Booking Period, while supplies last, for travel flown within the Travel Period. Changes made to the itinerary after purchase will eliminate qualification for this promotion and will result in forfeiture of any promotion savings. The discount is only valid with the provided promotion and is not combinable with other promotions or fares. All reward travel is subject to taxes, fees, and other government or airport-imposed charges of at least $5.60 per one-way trip. Applicable taxes, fees, and other government or airport-imposed charges can vary significantly based on your arrival and departure destination. The payment of any taxes, fees, and other government or airport-imposed charges is the responsibility of the Passenger and must be paid at the time reward travel is booked with a credit card, flight credit, or a Southwest gift card.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.

Original Post

Written by serra | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
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.

Editor's Notes

Written by johnny_miller | Staff
  • Offer terms:
    • Up to 40 percent off promotion savings valid for qualifying one-way or round trip fares booked on Southwest.com or swabiz.com from September 14, 2026 at 12:01 a.m. Pacific Time ("PT") through September 17, 2026 11:59 p.m. PT (the "Booking Period"), and flown between October 5, 2026-March 3, 2027 (the "Travel Period"). Interisland Hawaii travel not included. Continental U.S travel blacked out October 12, November 20-November 25, November 28-November 30, December 18, 2026-January 4, February 12, and February 15, 2027. Continental U.S. travel to international, Hawaii, St. Thomas, and Puerto Rico blacked out November 19-25 and December 17, 2026-January 5, 2027. Continental U.S. travel from international, Hawaii, St. Thomas, and Puerto Rico blacked out November 27-December 1 and December 17, 2026-January 5, 2027. Continental U.S. travel valid Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, and Saturdays. Travel from continental U.S. to Hawaii, St. Thomas, and international is valid Sundays, Mondays, Tuesdays, and Wednesdays. Travel to continental U.S. from Hawaii, St. Thomas, and international is valid Tuesdays, Wednesdays, Thursdays, and Fridays. Travel to/from Puerto Rico is valid Mondays, Tuesdays, Wednesdays, and Thursdays. Service is subject to seasonal scheduling and may not operate year-round. Seasonal service to Anchorage operates until September 14, 2026. Promotion savings are applied before government taxes and fees. Discount is automatically applied and shown as a strikethrough on the displayed base fare on eligible flights. Seats, days, and markets are limited. Discount availability may vary by destination, flight, and day of the week, and won't be available on some flights that operate during very busy travel times and holiday periods.
    • Discount is valid on new reservations only. Discount will apply only for select flights booked within the Booking Period, while supplies last, for travel flown within the Travel Period. Changes made to the itinerary after purchase will eliminate qualification for this promotion and will result in forfeiture of any promotion savings. The discount is only valid with the provided promotion and is not combinable with other promotions or fares. All reward travel is subject to taxes, fees, and other government or airport-imposed charges of at least $5.60 per one-way trip. Applicable taxes, fees, and other government or airport-imposed charges can vary significantly based on your arrival and departure destination. The payment of any taxes, fees, and other government or airport-imposed charges is the responsibility of the Passenger and must be paid at the time reward travel is booked with a credit card, flight credit, or a Southwest gift card.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.

Original Post

Written by serra | Staff

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34 Comments

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Sep 15, 2026 2:50 AM
24 Comments
Joined Dec 2015
JMartCo2Sep 15, 2026 2:50 AM
24 Comments

Our community has rated this post as helpful. If you agree, why not thank

Literally just booked a flight for our family of 5 a week ago which would fall within the terms of this "sale". Just checked and even with this "sale" it came up $500 more than we just paid a week ago. False advertising. Inflated pricing to give the illusion of a sale.
3
Sep 15, 2026 4:01 AM
1.4K Comments
Joined Sep 2009
d0min0Sep 15, 2026 4:01 AM
1.4K Comments
can buy southwest gift cards from doordash for 10% to sweeten the deal
Sep 15, 2026 4:06 AM
578 Comments
Joined Jul 2003
Inc0gnit0xSep 15, 2026 4:06 AM
578 Comments
Quote from JMartCo2 View quoted comment :
Literally just booked a flight for our family of 5 a week ago which would fall within the terms of this "sale". Just checked and even with this "sale" it came up $500 more than we just paid a week ago. False advertising. Inflated pricing to give the illusion of a sale.
Good to know it's just a dumb marketing gimmick. I am open to destinations and have no way to know which flights are on sale unless I search each airport.
Sep 15, 2026 4:53 AM
21 Comments
Joined Apr 2019
kd2000Sep 15, 2026 4:53 AM
21 Comments
Same old gimmick going on decades. You will never find anything for normal hours
1
Sep 15, 2026 5:23 AM
50 Comments
Joined Sep 2021
SociableSnow961Sep 15, 2026 5:23 AM
50 Comments
What a ripoff. SAN-PVR 12-8/12-15 Nonstop Alaska Airlines $340
1 Stop Southwest $524.16 (lowest fare)
Sep 15, 2026 8:03 AM
251 Comments
Joined Dec 2021
IndigoNest3446Sep 15, 2026 8:03 AM
251 Comments
Quote from BYoungSD View quoted comment :
I hate these because I can never get a clear picture of fair discounts in one spot. Like yeah they're 40% off but if you try to search your airport or even using the fair calendar I can just never find deals that good and it's frustrating.
Unfair calendar.
Sep 15, 2026 8:15 AM
223 Comments
Joined Nov 2015
tqhabibSep 15, 2026 8:15 AM
223 Comments
Bogus sale, as are all of SWA sales now. My trip to Boston actually went up in price by $150 for two people.
1

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Sep 15, 2026 10:04 AM
356 Comments
Joined Jan 2008
skyjockeySep 15, 2026 10:04 AM
356 Comments
Select a seat was a great move but now they've become one the the higher cost airlines to fly. The mile points I have are probably worth 1/2 what they were when I got them?
Sep 15, 2026 12:33 PM
377 Comments
Joined Sep 2003
elkbow2003Sep 15, 2026 12:33 PM
377 Comments
I've flown exclusively Southwest for 30 years, but lately I've been flying Alaska Airlines. I can fly non stop in 1st class on Alaska ($775) cheaper than Choice Extra on SWA ($992)
Sep 15, 2026 12:45 PM
1.2K Comments
Joined Feb 2024
AronManSep 15, 2026 12:45 PM
1.2K Comments
Quote from kd2000 View quoted comment :
Same old gimmick going on decades. You will never find anything for normal hours
define "normal hours". I am retired and find deals all the time on Southwest because I can travel during...uhh "non normal hours?"
I mean, come on...are you really that surprised Friday and Sunday flights don;t have a high discount? But keep posting the FUD for other to join in on.
1
Sep 15, 2026 9:12 PM
4.5K Comments
Joined Apr 2011
ThatOneGuyWho1Sep 15, 2026 9:12 PM
4.5K Comments
This must be a joke. They want $200 more than regular price from other airlines. What a waste of time.
Sep 15, 2026 9:17 PM
1.2K Comments
Joined Feb 2024
AronManSep 15, 2026 9:17 PM
1.2K Comments
Quote from ThatOneGuyWho1 View quoted comment :
This must be a joke. They want $200 more than regular price from other airlines. What a waste of time.
keep spreading the FUD! I love when people bash Southwest, leaves that middle seat empty for me and the wife!....lol
Sep 15, 2026 10:06 PM
508 Comments
Joined Feb 2007
dj corgasmSep 15, 2026 10:06 PM
508 Comments
Quote from AronMan View quoted comment :
lol....Thank you for telling me what I am allowed or not allowed to be happy for! Most people in my circle think $369 is a pretty darn good price for two people to go to Grand Cayman from Chicago in November. Same for the $220 for two people to MCO. But you keep on bashing them! Love when I book a window and an aisle and end up with a free middle seat bewtween us! Must be all you Alska Air people bailing on Southwest!
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.
Last edited by dj corgasm September 15, 2026 at 03:10 PM.
Sep 15, 2026 10:12 PM
4.5K Comments
Joined Apr 2011
ThatOneGuyWho1Sep 15, 2026 10:12 PM
4.5K Comments
Quote from AronMan View quoted comment :
keep spreading the FUD! I love when people bash Southwest, leaves that middle seat empty for me and the wife!....lol
Can't spread fear when the deal is still $200 more than any other airline right now. SW is great, this deal isn't though. Go away.

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Sep 16, 2026 2:49 AM
2.1K Comments
Joined Nov 2004
cappuccinomanSep 16, 2026 2:49 AM
2.1K Comments
Quote from dj corgasm View quoted comment :
You're the only whiner here for SW. SW is never a slick deal now, it is now always a Luke warm deal. Get off your lazy butt & open your eyes. Us on the west coast can fly Alaska air (& JetBlue), west coast to NYC NONSTOP $240 round trip on sales. West coast to Florida NONSTOP $250. West coast to other major cities on JSX for same price as dumb SW now. Other airlines & all these can just be bought on normal sales, SW is at the bottom now, you stop posting from your knees slobbering frothing at the mouth for SW when many people can find multiple multiple better flights everywhere else. Took 3 trips this summer, & searched. The SW deals were worse, every time a SW sale appeared.

Fine SW they can have the Chicago airports, but ppl in Washington, Oregon, California, Nevada, Arizona, Texas, where SW used to have nice deals, ppl have now experienced SW is never a good value now. Like in many many many other threads, tons of people have proof & evidence that there are other greater slickdeals that offer more days & MORE FLIGHTS at about $220 nonstop round trip, we all have posted tons of times our flights. We're all saying SW is now a Luke warm deal, majority of ppl are not finding flights, & posting reviews of not finding flights. SW sales are strictly average to below average, & most of the time are now a waste of time searching, for a ton of us now.
Southwest does suck. It's the truth

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