Cheap flights from San Antonio to St. Louis from $85

Travelers frequently search for route combinations, such as San Antonio and Mexico City, Guadalajara, Los Angeles, Las Vegas, Orlando, Cancún, Monterrey, Puerto Vallarta, New York, Puerto Escondido, Oaxaca, Denver, Santiago de Querétaro, Oaxaca, San José del Cabo, Dallas, London, Manila, Edmonton, Chicago, Vancouver.

Travelers frequently search for route combinations, such as St. Louis and Denver, Orlando, Las Vegas, Los Angeles, London, Dallas, Fort Lauderdale, Bogotá, Mexico City, Tokyo, Frankfurt, Cebu, San Francisco, Athens, Amsterdam, Naples, Cancún, Portland, Washington, D.C., San Diego.

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

The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, General Wayne A. Downing Peoria International, Evansville Regional, Cape Girardeau Regional, Abraham Lincoln Capital, Waynesville-St. Robert Regional, MidAmerica St. Louis, Barkley Regional, Williamson County Regional, Central Illinois Regional.

Currently, you can fly between San Antonio and St. Louis with United Airlines, Frontier Airlines, Spirit Airlines, Volaris, VivaAerobus.

If you don’t have specific dates for your trip between San Antonio and St. Louis, 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 St. Louis, 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, Laredo International, Piedras Negras International, Corpus Christi International, Victoria Regional, Killeen–Fort Hood Regional, Easterwood

There are a number of airports in and around St. Louis. The main one is St. Louis Lambert International and other nearby airports include St. Louis Lambert International, General Wayne A. Downing Peoria International, Evansville Regional, Cape Girardeau Regional, Abraham Lincoln Capital, Waynesville-St. Robert Regional, MidAmerica St. Louis, Barkley Regional, Williamson County Regional, Central Illinois Regional.