Start the year by booking a cheap flight on Southwest Airlines. The latest 3-day sale features advertised fares as low as $29 one-way on Interisland Hawaii flights and continental U.S. travel starting from $45 one-way or $94 roundtrip. Several international routes are also on sale.
As always, many routes have lower unadvertised fares available than what Southwest advertises in its weekly sale. You'll often find drastically lower fares in markets that compete with ultra-low-cost carriers — many are under or close to $100 roundtrip.
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, Tuesdays, Wednesdays, Thursdays, and Saturdays, for most routes. See below for variances by market.
- Blackout Dates: None listed.
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. may require a 21-day advance purchase. Interisland Hawaiian fares are valid for travel on Tuesdays and Wednesdays. Tickets to/from San Juan, Puerto Rico are valid Mondays through Thursdays, through March 5, and April 14 - May 14, 2020.
International travel is valid through 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 the spring. A few markets only have nonstop flights on limited days of the week.
Sale Period
Tickets must be purchased by Thursday, January 9, at 11:59 pm PT.
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 Hilo $58 roundtrip, nonstop
Honolulu to Lihue $58 roundtrip, nonstop
Maui to Kona $58 roundtrip, nonstop
Atlanta to Greenville $94 roundtrip, nonstop
Atlanta to Nashville $98 roundtrip, nonstop
San Francisco to Las Vegas $98 roundtrip, nonstop
Oakland to Reno $118 roundtrip, nonstop
Seattle to San Jose $118 roundtrip, nonstop
Chicago to Cincinnati $156 roundtrip, nonstop
Portland to Oakland $158 roundtrip, nonstop
Los Angeles to El Paso $168 roundtrip, nonstop
Washington D.C. to Columbus $178 roundtrip, nonstop
Dallas to Los Angeles $178 roundtrip, nonstop
Detroit to Chicago $184 roundtrip, nonstop
St. Louis to Nashville $184 roundtrip, nonstop
Baltimore to Charleston $190 roundtrip, nonstop
Albuquerque to Phoenix $194 roundtrip, nonstop
Buffalo to Ft. Lauderdale $202 roundtrip, nonstop
Nashville to Pensacola $212 roundtrip, nonstop
Houston to Milwaukee $220 roundtrip, nonstop
Chicago to Norfolk $220 roundtrip, nonstop
Indianapolis to Tampa $226 roundtrip, nonstop
Milwaukee to Washington D.C. $268 roundtrip, nonstop
Philadelphia to St. Louis $288 roundtrip, nonstop
Kansas City to New Orleans $298 roundtrip, nonstop
San Jose to Nashville $348 roundtrip, nonstop
These are the advertised sale fares. Many routes have lower unadvertised tickets available.
International Flights
Ft. Lauderdale to Turks and Caicos $215 roundtrip, nonstop
Ft. Lauderdale to San Jose, Costa Rica $234 roundtrip, nonstop
Ft. Lauderdale to Nassau $236 roundtrip, nonstop
Tampa to Havana $249 roundtrip, nonstop
Houston-Hobby to Cozumel $274 roundtrip, nonstop
Orlando to Montego Bay $284 roundtrip, nonstop
San Diego to Los Cabos $304 roundtrip, nonstop
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 Honolulu HNL on Wednesday, February 5, returning from Hilo ITO on Tuesday, February 11, for $58 roundtrip.
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