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 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.
Some routes may be seasonal or begin service in the spring. A few markets only have nonstop flights on limited days of the week.
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.
All fares also work in the reverse direction.
These are the advertised sale fares. Many routes have lower unadvertised tickets available.
Sale fares include a carry-on bag, a personal item, and two free checked bags up to 50lbs/23kg each.
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.
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.