• All flights require a 21-day advance purchase. 
• Travel within the continental U.S. must be between March 31 and June 11.
• Travel to and from Hawaii from the continental U.S., and San Juan, Puerto Rico must be between April 28 and May 21.

Spring is nearly here and Southwest Airlines wants to get you somewhere warm. The budget airline is having a sale with one-way flights beginning at $49.

Travel is available for the airline’s one-way Wanna Get Away fares, and may be combined with other fares, though the most restrictive fare’s rules apply. A flight from New York (LGA) to Jacksonville (JAX), for example, started at $99 in May and fares from New York (LGA) to Miami (MIA) began at $76 in May. Flights from Los Angeles (LAX) to Honolulu (HNL) started at $232 one way in May. 

The deal require a 21-day advance purchase and must be made by March 13 by 11:59 p.m. Pacific Time. Southwest’s Low-Fare Calendar will help spot the best deal for any day in month during the sale. 

There are restrictions to note before booking. Flights are non-refundable, though those that are cancelled before 10 minutes of departure are eligible for a credit toward a future booking. 

Travel within the continental U.S. must be between March 31 and June 11 (Mondays through Thursdays), and Memorial Day (May 26) is blacked out. Travel to and from Chicago (ORD/MDW) is not included in the sale. 

International travel, travel to and from Hawaii from the continental U.S., and San Juan, Puerto Rico must be taken between April 28 and May 21. Travel to Hawaii and internationally from the continental U.S. are valid Sundays through Wednesday, while travel to the continental U.S. is valid on Tuesdays through Fridays. Travel to and from San Juan, Puerto Rico must be made on Mondays through Thursdays.