Cheap flights from San Antonio to Key West from £159

Travelers frequently search for route combinations, such as San Antonio and Mexico City, London, Guadalajara, Las Vegas, Orlando, Los Angeles, New York, Manchester, Atlanta, Denver, Puerto Escondido, Oaxaca, Puerto Vallarta, Toronto, Cincinnati, Salt Lake City, Sacramento, Seattle, San Juan, Philadelphia, Cancún.

Travelers frequently search for route combinations, such as Key West and Orlando, Tampa, Manchester, Minneapolis, Fort Lauderdale, Philadelphia, Detroit, Nashville, Cincinnati, Indianapolis, Washington, D.C., Atlanta, Portland, Toronto, Seattle, Plattsburgh, Charlotte, Atlantic City, Vienna, Providence.

The main airport in San Antonio is San Antonio International. It is also served by Austin–Bergstrom International, San Antonio International, Nuevo Laredo International, Piedras Negras International, Killeen–Fort Hood Regional, Laredo International, Victoria Regional, Corpus Christi International, Easterwood.

The main airport in Key West is Key West International. It is also served by Miami International, Key West International.

Currently, you can fly between San Antonio and Key West with United Airlines, Silver Airways.

If you don’t have specific dates for your trip between San Antonio and Key West, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between San Antonio and Key West, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around San Antonio. The main one is San Antonio International and other nearby airports include Austin–Bergstrom International, San Antonio International, Nuevo Laredo International, Piedras Negras International, Killeen–Fort Hood Regional, Laredo International, Victoria Regional, Corpus Christi International, Easterwood

There are a number of airports in and around Key West. The main one is Key West International and other nearby airports include Miami International, Key West International.