Cheap flights from Ontario to Siem Reap from $588

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

Travelers frequently search for route combinations, such as Siem Reap and Bangkok, Ho Chi Minh City, Phnom Penh, Hanoi, Da Nang, Chiang Mai, Tampa, Nashville, Tulsa, Seattle, Philadelphia, Washington, D.C., Charlotte, Honolulu, Phuket City, Kuala Lumpur, Sihanoukville Province, Singapore, Krabi, Ko Samui.

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.

The main airport in Siem Reap is Siem Reap International. It is also served by Phnom Penh International.

Currently, you can fly between Ontario and Siem Reap with China Airlines, Vietnam Airlines, United Airlines, Frontier Airlines, Bangkok Airways.

If you don’t have specific dates for your trip between Ontario and Siem Reap, 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 Siem Reap, 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, Palm Springs International, Hollywood Burbank, Long Beach, Santa Barbara Municipal, Meadows Field, Imperial County

There are a number of airports in and around Siem Reap. The main one is Siem Reap International and other nearby airports include Phnom Penh International.