Southwest 3 day sale starts today.
Starts at $49.
21-day advance purchase required. Purchase from October 10 through October 12, 2017, 11:59 p.m. in the respective time zone of the originating city. Domestic travel valid October 31 through December 19, 2017, and January 3 through February 14, 2018. Travel to/from San Juan, Puerto Rico valid October 31 through December 7, 2017, and January 16 through March 1, 2018. International travel valid October 31 through December 13, 2017, and January 10 through March 2, 2018. Domestic and San Juan, Puerto Rico travel blacked out November 21-22, November 25-27, 2017