Cheap flights from San José, Costa Rica to Ontario, CA

Travelers frequently search for route combinations, such as San José and Guatemala City, Cancún, Mexico City, Liberia, Tambor, Quepos, Panama, Los Angeles, Puerto Jiménez, Tamarindo, San José del Cabo, New York, Medellín, San Salvador, Fort Lauderdale, Bogotá, London, Madrid, Lima, Tijuana.

Travelers frequently search for route combinations, such as Ontario and Denver, Orlando, Austin, Atlanta, Sacramento, Seattle, San Francisco, Washington, D.C., San Jose, San Antonio, Raleigh, Phoenix, Charlotte, Portland, Detroit, Philadelphia, Las Vegas, Oakland, Nashville, Chicago.

San José is mainly served by Juan Santamaría International. But there are other airports nearby, including Tobías Bolaños International.

The main airport in San José is Juan Santamaría International. It is also served by Daniel Oduber Quirós International, Quepos La Managua, Limón International, Fortuna Arenal, Tortuguero.

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, Santa Barbara Municipal, Imperial County.

Yes, it's possible to combine different modes of transport between San José and Ontario thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between San José and Ontario 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 San José and Ontario with Frontier Airlines, Avianca, Spirit Airlines, Volaris, United Airlines.

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