Cheap flights from Washington, D.C. to Siem Reap from $672

Travelers frequently search for route combinations, such as Washington, D.C. and Orlando, Atlanta, Mexico City, Los Angeles, Tampa, Miami, San Juan, Dallas, Denver, Istanbul, Guadalajara, New Delhi, Kathmandu, Paris, Fort Lauderdale, Houston, Toronto, Chicago, Kabul, Cancún.

Travelers frequently search for route combinations, such as Siem Reap and Bangkok, Boston, Phnom Penh, New York, Chicago, Seattle, Minneapolis, Los Angeles, Phuket City, Hanoi, Ho Chi Minh City, Singapore, Da Nang, Krabi, Chiang Mai, Kuala Lumpur, Sihanoukville Province, Manila, Ko Samui, Vientiane.

Washington, D.C. is mainly served by Washington Dulles International. But there are other airports nearby, including Baltimore–Washington International, Ronald Reagan Washington National.

The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Hagerstown Regional, Lancaster.

Currently, you can fly between Washington, D.C. and Siem Reap with Korean Air, Thai AirAsia, Vietnam Airlines, VietJet Air, Air Cambodia.

If you don’t have specific dates for your trip between Washington, D.C. 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 Washington, D.C. 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 Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Hagerstown Regional, Lancaster

This depends on the airline’s flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Washington, D.C., such as morning, afternoon, evening, or night, or select the exact hours for departure.