The latest sale from Southwest includes both domestic and international routes for nonstop travel through spring.
Domestic fares are valid for nonstop travel on Mondays through Thursdays, as well as Saturdays, from January 23 through May 23. Fares to/from San Juan, Puerto Rico are valid from January 23 through March 1, and again from April 3 through May 17. International fares are valid for travel from January 23 through March 1, and again from April 3 through March 17.
Tickets must be booked by 11:59pm, January 25.
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.