Cheap flights from Seoul to Ontario from $575

Travelers frequently search for route combinations, such as Seoul and Los Angeles, San Francisco, Honolulu, Tokyo, Atlanta, Bangkok, Manila, New York, Seattle, Phoenix, Osaka, Saipan, San Diego, Miami, Washington, D.C., Denver, Jeju City, Hanoi, Ho Chi Minh City, Cebu.

Travelers frequently search for route combinations, such as Ontario and Dallas, Las Vegas, San Francisco, Denver, Portland, Guadalajara, Seattle, Phoenix, Minneapolis, Sacramento, Salt Lake City, Atlanta, Houston, Orlando, Boise, Chicago, Cleveland, San Jose, Albuquerque, Mexico City.

Seoul is mainly served by Incheon International. But there are other airports nearby, including Gimpo International, Seoul Air Base.

The main airport in Seoul is Incheon International. It is also served by Daegu International, Cheongju International, Wonju, Gunsan.

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

Currently, you can fly between Seoul and Ontario with Hawaiian Airlines, Frontier Airlines, Alaska Airlines, Asiana Airlines, Korean Air.

If you don’t have specific dates for your trip between Seoul 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 Seoul 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 Seoul. The main one is Incheon International and other nearby airports include Daegu International, Cheongju International, Wonju, Gunsan