Cheap flights from Athens to Ontario from $629

Travelers frequently search for route combinations, such as Athens and New York, Los Angeles, Miami, Tel Aviv, San Francisco, Kutaisi, Boston, Tirana, Washington, D.C., Asheville, Denver, Seattle, Orlando, Portland, London, Santorini, Barcelona, Istanbul, Paris, Larnaca.

Travelers frequently search for route combinations, such as Ontario and San Francisco, Las Vegas, Dallas, Guadalajara, Seattle, Sacramento, Houston, Portland, Denver, Atlanta, Chicago, New York, Los Angeles, Mexico City, Washington, D.C., Rome, Orlando, St. Louis, Columbus, Fargo.

Athens is mainly served by Athens International. But there are other airports nearby, including Athen Helenikon Airport.

The main airport in Athens is Athens International. It is also served by Milos Island National, Kalamata International, Araxos.

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, Santa Barbara Municipal, Long Beach, McClellan–Palomar, Imperial County.

Currently, you can fly between Athens and Ontario with Frontier Airlines, Alaska Airlines, Turkish Airlines, JetBlue Airways, WestJet.

If you don’t have specific dates for your trip between Athens 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.

Traveling between Athens and Ontario, 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 Athens. The main one is Athens International and other nearby airports include Milos Island National, Kalamata International, Araxos