Southwest Airlines is back again this week with another massive nationwide sale through Thursday. Tickets start at just $39 one-way or $78 roundtrip.

Over 4,000 domestic routes are seeing discounts, and the prices are lower than we've seen advertised in previous sales for several routes.

Travel Availability

  • Travel Period: Now through March 4, 2020, with a 14-day advance purchase.
  • Travel Days of the Week: Tuesdays, Wednesdays, and Saturdays for most routes; Travel days vary on certain routes as stated below.
  • Blackout Dates: Continental U.S. travel is blacked out November 22, 24, 26-27, November 30 - December 2, December 19-23, December 26, 2019 - January 1, 2020; January 4-5, 2020; Other markets have different blackout dates as stated below.

Departures to Las Vegas and select Florida airports are available Sunday through Wednesday; Travel from Las Vegas and certain cities in Florida is valid Tuesday through Friday. Travel to/from Newark is valid through November 2, 2019.

Interisland Hawaiian fares are valid for travel on Tuesdays and Wednesdays, with blackout dates from November 22 - December 2, and December 19, 2019 - January 6, 2020. Fares to/from San Juan, Puerto Rico are valid Mondays through Thursdays, through December 5, and 2019, and January 13 - March 5, 2020.

Some routes may be seasonal or begin service in 2020. A few markets only have nonstop flights on limited days of the week.

*Note: Southwest isn't advertising these fares for Monday and Thursday travel, but we've found the fares to be available on these days of the week for most of the advertised nonstop routes.

Sale Period

Tickets must be purchased by Thursday, September 26, 2019, at 11:59 pm PDT.

Sample Sale Fares

Please note, these fares are only available on Southwest.com. Other carriers regularly match these sale fares, so be sure to compare to find the best deal.

Hilo to Honolulu $78 roundtrip, nonstop

Honolulu to Maui $78 roundtrip, nonstop

San Jose to San Diego $98 roundtrip, nonstop

Sacramento to Long Beach $98 roundtrip, nonstop

Burbank to San Francisco $108 roundtrip, nonstop

Baltimore to Boston $118 roundtrip, nonstop

Orlando to Ft. Lauderdale $118 roundtrip, nonstop

Phoenix to El Paso $128 roundtrip, nonstop

Los Angeles to Portland, OR $154 roundtrip, nonstop

Little Rock to Houston-Hobby $164 roundtrip, nonstop

Denver to Seattle $172 roundtrip, nonstop

Cleveland to Milwaukee $174 roundtrip, nonstop

Austin to New Orleans $182 roundtrip, nonstop

Pittsburgh to Tampa $184 roundtrip, nonstop 

Kansas City to Dallas-Love Field $184 roundtrip, nonstop

Chicago-Midway to Newark $190 roundtrip, nonstop

El Paso to Los Angeles $194 roundtrip, nonstop

Minneapolis to St. Louis $198 roundtrip, nonstop

Nashville to Pensacola $202 roundtrip, nonstop 

Milwaukee to Houston-Hobby $210 roundtrip, nonstop

Dallas-Love Field to Memphis $212 roundtrip, nonstop

New York-LGA to Kansas City $218 roundtrip, nonstop

Charleston to Chicago-Midway $218 roundtrip, nonstop

Indianapolis to Ft. Lauderdale $240 roundtrip, nonstop

Philadelphia to St. Louis $278 roundtrip, nonstop

Manchester to Orlando $284 roundtrip

All fares also work in the reverse direction. These are the advertised sale fares. Some routes have lower fares than advertised.


Related: How to Fly Southwest Airlines (And Get the Seat You Want)


Baggage

Sale fares include a carry-on bag, a personal item, and two free checked bags up to 50lbs/23kg each.

Seat Assignments

Southwest has an open seating policy, which means there are no assigned seats, and you'll get to choose your place during boarding. The order of boarding is determined by the time of check-in, so check-in exactly 24 hours before departure or pay for priority boarding for a better choice of seat.

Example Booking

Searching Southwest's website, I found seats departing Boston BOS on Saturday, November 16, returning from Baltimore BWI on Tuesday, November 19, 2020, for $118 roundtrip.

Stay on top of breaking sales, fare drops, and more! Follow us on Twitter at @Airfarewatchdog. And make sure to sign up for FREE alerts to be notified when prices drop.

Featured image: aapsky / Shutterstock

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