Cheap flights from Ontario to Dublin from $390

Travelers frequently search for route combinations, such as Ontario and Guadalajara, Dallas, Seattle, Las Vegas, San Francisco, Mexico City, Houston, Denver, Honolulu, Sacramento, Chicago, Portland, Washington, D.C., New York, Toronto, Orlando, Veracruz, Cancún, Atlanta, London.

Travelers frequently search for route combinations, such as Dublin and Washington, D.C., Boston, New York, Salt Lake City, San Francisco, Denver, Barcelona, Chicago, New Orleans, Phoenix, Houston, Seattle, Fort Lauderdale, Orlando, Minneapolis, Norfolk, Eugene, Los Angeles, Pensacola, Charlotte.

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

The main airport in Dublin is Dublin. It is also served by Dublin, Shannon, Cork, Belfast International, George Best Belfast City, Isle of Man, Ireland West Airport Knock, City of Derry, Donegal.

Currently, you can fly between Ontario and Dublin with Frontier Airlines, Ryanair, JetBlue Airways, Aer Lingus, Icelandair.

If you don’t have specific dates for your trip between Ontario and Dublin, 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 Dublin, 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, John Wayne, Ontario International, Hollywood Burbank, Palm Springs International, Long Beach, Santa Barbara Municipal, McClellan–Palomar, Imperial County

There are a number of airports in and around Dublin. The main one is Dublin and other nearby airports include Dublin, Shannon, Cork, Belfast International, George Best Belfast City, Isle of Man, Ireland West Airport Knock, City of Derry, Donegal.