The latest nationwide sale from Southwest Airlines features one-way tickets as low as $39 or $78 roundtrip on interisland Hawaii flights. Mainland domestic flights are as low as $98 roundtrip, and there are several international flights on sale as well.

Roughly 4,300 routes are seeing discounts, so there's a flight deal that will surely work for whatever upcoming travel you have in store.

Travel Availability

  • Travel Period: Now through May 20, 2020, with a 14-day advance purchase for continental U.S. travel.
  • Travel Days of the Week: Monday - Thursday & Saturdays.
  • Blackout Dates: December 21-23, 26-30, 2019, and January 4-5, 2020; Other markets have different blackout dates listed 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.

Routes outside the continental U.S. require a 21-day advance purchase. Interisland Hawaiian fares are valid for travel on Tuesdays and Wednesdays, with blackout dates from December 19, 2019 - January 6, 2020. Tickets to/from San Juan, Puerto Rico are valid Mondays through Thursdays, through December 5, 2019, January 13 - March 5, and April 14 - May 14, 2020.

International travel is valid through December 11, 2019, and January 7 - March 5, and April 14 - May 14, 2020. Trips to Mexico are valid Sundays through Wednesdays; Travel from Mexico is valid Tuesdays through Fridays. All other international travel is open Mondays through Thursdays.


Related: The Complete List of Southwest Airlines International Destinations


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

Sale Period

Tickets must be purchased by Thursday, November 21, 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.

Domestic Flights

All fares also work in the reverse direction.

Maui to Kona $78 roundtrip, nonstop

Hilo to Honolulu $78 roundtrip, nonstop

Atlanta to Greenville $98 roundtrip, nonstop

Long Beach to San Jose $108 roundtrip, nonstop

San Francisco to Burbank $118 roundtrip, nonstop

Las Vegas to Salt Lake City $118 roundtrip, nonstop

Orlando to Ft. Lauderdale $118 roundtrip, nonstop

Boston to Baltimore $118 roundtrip, nonstop

Washington DC-DCA to Providence $118 roundtrip, nonstop

Oakland to Los Angeles $138 roundtrip, nonstop

Charlotte to Nashville $148 roundtrip, nonstop

Cincinnati to Chicago-Midway $156 roundtrip, nonstop

Raleigh/Durham to Austin $164 roundtrip, nonstop

Houston-Hobby to Little Rock $172 roundtrip, nonstop

Chicago-Midway to Indianapolis $184 roundtrip, nonstop

Wichita to St. Louis $184 roundtrip, nonstop

Ft. Lauderdale to New Orleans $184 roundtrip, nonstop

Atlanta to Washington DC-IAD $188 roundtrip, nonstop

Dallas-Love Field  to Kansas City $194 roundtrip, nonstop

Indianapolis to Ft. Myers $198 roundtrip

Pittsburgh to Orlando $200 roundtrip, nonstop

Phoenix to Spokane $200 roundtrip, nonstop

Albany to Ft. Lauderdale $202 roundtrip, nonstop

Houston-Hobby to Omaha $204 roundtrip, nonstop

St. Louis to Minneapolis $208 roundtrip, nonstop

Nashville to Pensacola $212 roundtrip, nonstop

New York-LGA to Tampa $218 roundtrip, nonstop

Milwaukee to Dallas-Love Field $218 roundtrip, nonstop

Hartford to Ft. Lauderdale $222 roundtrip, nonstop

Charleston to Chicago-Midway $226 roundtrip, nonstop

Pittsburgh to West Palm Beach $236 roundtrip, nonstop

Philadelphia to Dallas-Love Field $288 roundtrip, nonstop

For nonstop continental U.S. travel, the advertised sale fares are $10 more, but we found actual roundtrip fares to be at least $10 less than advertised. Some routes may have even lower unadvertised fares.

International Flights

Ft. Lauderdale to Grand Cayman $212 roundtrip, nonstop

Ft. Lauderdale to Providenciales, Turks and Caicos $215 roundtrip, nonstop

Tampa to Havana $249 roundtrip, nonstop

Ft. Lauderdale to San Jose, Costa Rica $263 roundtrip, nonstop

Orlando to Montego Bay $289 roundtrip, nonstop

Houston-Hobby to Cozumel $340 roundtrip, nonstop

These are the advertised sale fares. Many routes have lower unadvertised tickets available.


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 El Paso ELP on Thursday, February 6, returning from Phoenix PHX on Monday, February 10, 2020, for $138 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: samatotoh / Shutterstock

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