Cheap flights from Ontario to San Diego from £178

Travelers frequently search for route combinations, such as Ontario and Guadalajara, Las Vegas, Dallas, San Francisco, Denver, Portland, Phoenix, Seattle, Salt Lake City, Sacramento, Atlanta, Minneapolis, Chicago, Toronto, Austin, New York, Indianapolis, Detroit, Houston, Oklahoma City.

Travelers frequently search for route combinations, such as San Diego and London, Las Vegas, Portland, Dallas, San Francisco, Manchester, Denver, Calgary, Salt Lake City, New York, Atlanta, Phoenix, Seattle, Minneapolis, Edinburgh, Toronto, San Jose, Oakland, Houston, Reno.

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, Meadows Field, Long Beach, Santa Barbara Municipal, McClellan–Palomar.

The main airport in San Diego is San Diego International. It is also served by Tijuana International, Ontario International, John Wayne, Mexicali International, Palm Springs International, Hollywood Burbank, Long Beach, Imperial County, Hawthorne Municipal, Yuma International.

Currently, you can fly between Ontario and San Diego with United Airlines, Hawaiian Airlines, Alaska Airlines.

If you don’t have specific dates for your trip between Ontario and San Diego, 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 Diego, 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 Ontario. The main one is Ontario International and other nearby airports include Tijuana International, San Diego International, Ontario International, John Wayne, Palm Springs International, Hollywood Burbank, Meadows Field, Long Beach, Santa Barbara Municipal, McClellan–Palomar

There are a number of airports in and around San Diego. The main one is San Diego International and other nearby airports include Tijuana International, Ontario International, John Wayne, Mexicali International, Palm Springs International, Hollywood Burbank, Long Beach, Imperial County, Hawthorne Municipal, Yuma International.