How much is a ticket from Washington Dulles to Siem Reap?

Flight prices from Washington to Siem Reap change depending on demand and time of booking.

Select your dates to check current offers.

Flying at off-peak hours — such as early morning or late evening — can help you save. Also, the best deals tend to appear in the weeks leading up to departure.

Are there multiple airports in Washington and Siem Reap?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

• Airports in Washington: 3 airports are active in Washington - Dulles international, Ronald Reagan, Washington International.
• Airports in Siem Reap: Siem Reap is the only airport currently running.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Adjust your flight filters for Washington Dulles – Siem Reap

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Other popular destinations

Planning a trip to Cambodia? These cities are popular too: Phnom Penh, Siem Reap, Sihanoukville.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.