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 4,000 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 March 6, 2020, with a 14-day advance purchase for continental U.S. travel.
  • Travel Days of the Week: Monday - Thursday & Saturdays.
  • Blackout Dates: November 22, 24, 26-27, November 30 - December 2, 19-23, December 26, 2019 - January 1, 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 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, 2019, and January 13 - March 5, 2020.

International travel is valid through December 11, 2019, and January 7 - March 5, 2020. Travel to Mexico is valid Sundays through Wednesdays; Travel from Mexico is valid Tuesdays through Fridays. All other international travel is valid 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 7, 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.

Honolulu to Kona $78 roundtrip, nonstop

Maui to Honolulu $78 roundtrip, nonstop

Atlanta to Nashville $98 roundtrip, nonstop

San Diego to San Jose $98 roundtrip, nonstop

Sacramento to Burbank $118 roundtrip, nonstop

Los Angeles to Las Vegas $128 roundtrip, nonstop

Orlando to Ft. Lauderdale $130 roundtrip, nonstop

Phoenix to El Paso $138 roundtrip, nonstop

Washington DC-National to Providence $142 roundtrip, nonstop

Boston to Baltimore $148 roundtrip, nonstop

Cincinnati to Chicago-Midway $156 roundtrip, nonstop

Reno to Oakland $156 roundtrip, nonstop

Seattle to San Jose $164 roundtrip, nonstop

Denver to Omaha $180 roundtrip, nonstop

New Orleans to Ft. Lauderdale $184 roundtrip, nonstop

Los Angeles to Phoenix $186 roundtrip, nonstop

Minneapolis to Denver $188 roundtrip, nonstop

Baltimore to Grand Rapids $192 roundtrip, nonstop

Albuquerque to San Diego $202 roundtrip, nonstop

Chicago-Midway to Buffalo $210 roundtrip, nonstop

Kansas City to San Antonio $214 roundtrip, nonstop

Boise to Long Beach $234 roundtrip, nonstop

Long Island-Islip to Baltimore $250 roundtrip, nonstop

Indianapolis to Austin $258 roundtrip

Pittsburgh to Dallas-Love Field $270 roundtrip, nonstop

St. Louis to Ft. Myers $282 roundtrip, nonstop

Washington DC-National to Houston-Hobby $288 roundtrip, nonstop

Norfolk to Tampa $290 roundtrip

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 $239 roundtrip, nonstop

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

Houston-Hobby to Belize City $300 roundtrip, nonstop

Orlando to Montego Bay $319 roundtrip, nonstop

Houston-Hobby to Cozumel $340 roundtrip, nonstop

These are the advertised sale fares. Many routes have lower unadvertised fares 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 Phoenix PHX on Thursday, February 6, returning from El Paso ELP 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: Carlos E. Santa Maria / Shutterstock

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