Cheap flights from Ontario, CA to San Antonio, TX

Travelers frequently search for route combinations, such as Ontario and Denver, Orlando, Austin, Las Vegas, Atlanta, Sacramento, San Francisco, Seattle, Guadalajara, Charlotte, New Orleans, Fort Lauderdale, Philadelphia, Washington, D.C., Oakland, San Jose, Detroit, Minneapolis, Chicago, Houston.

Travelers frequently search for route combinations, such as San Antonio and Las Vegas, Denver, Orlando, San Diego, Atlanta, Los Angeles, Phoenix, Washington, D.C., Chicago, Mexico City, Salt Lake City, Minneapolis, San Juan, Charlotte, San Francisco, Philadelphia, Colorado Springs, Fort Lauderdale, New York, Santa Ana.

The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, Ontario International, John Wayne, Palm Springs International, Hollywood Burbank, Long Beach, Meadows Field, Imperial County, Santa Barbara Municipal.

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

Yes, it's possible to combine different modes of transport between Ontario and San Antonio thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Ontario and San Antonio can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Ontario and San Antonio with Frontier Airlines, Spirit Airlines, United Airlines, Alaska Airlines, JetBlue Airways.

If you don’t have specific dates for your trip between Ontario and San Antonio, 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 Ontario and San Antonio, 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.