Southwest Airlines is back again this week with another massive nationwide sale. Tickets start at just $29 one-way or $58 roundtrip.

Over 4,500 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 12, 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 $58 roundtrip, nonstop

Honolulu to Maui $58 roundtrip, nonstop

San Jose to Burbank $98 roundtrip, nonstop

Seattle to San Jose $98 roundtrip, nonstop

Sacramento to Long Beach $98 roundtrip, nonstop

Baltimore to Raleigh $98 roundtrip, nonstop

Nashville to Boston $118 roundtrip, nonstop

Portland to Los Angeles $118 roundtrip, nonstop

Orlando to Ft. Lauderdale $118 roundtrip, nonstop

Phoenix to El Paso $128 roundtrip, nonstop

Boston to Jacksonville $134 roundtrip

Newark to Nashville $148 roundtrip, nonstop

Little Rock to New Orleans $158 roundtrip

Cleveland to Long Island-Islip $164 roundtrip

Austin to San Diego $168 roundtrip, nonstop

Portland to Reno $174 roundtrip

San Diego to Dallas $178 roundtrip, nonstop

Minneapolis to Kansas City $188 roundtrip, nonstop

Denver to Milwaukee $188 roundtrip, nonstop

El Paso to Los Angeles $194 roundtrip, nonstop

Pittsburgh to Norfolk $198 roundtrip

Chicago to Washington D.C. $238 roundtrip, nonstop

Baltimore to Pensacola $238 roundtrip

Houston to Raleigh $242 roundtrip, nonstop

Dallas to Charlotte $244 roundtrip, nonstop

Philadelphia to St. Louis $278 roundtrip, nonstop

New York to Amarillo $324 roundtrip

Seattle to West Palm Beach $348 roundtrip

Indianapolis to San Juan $388 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, September 21, returning from Jacksonville JAX on Tuesday, September 24, for $134 roundtrip.

cheap-flight-from-boston-to-jacksonville-134-roundtrip-on-southwest

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

Featured image: yu-jas / Shutterstock

More Stories You'll Love