WAS - PNH

Find cheap flights from Washington, D.C. to Phnom Penh

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Phnom Penh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Phnom Penh, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Phnom Penh, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
Multiple Airlines
Fri 1/30
WAS - PNH • multi-stop
Cheapest one-way
Multiple Airlines
Fri 1/30
WAS - PNH • multi-stop
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We hope you love your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Phnom Penh (WAS-PNH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Phnom Penh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Phnom Penh

Multiple Airlines Logo
WAS
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PNH
8943 mimulti-stop
Multiple Airlines Logo
PNH
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WAS
8943 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Phnom Penh flights

Get data-powered insights and trends into flights from Washington, D.C. to Phnom Penh to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Washington, D.C. to Phnom Penh?

Percentage of 1-stop round-trip flights from Washington, D.C. to Phnom Penh chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Incheon (ICN) is the top choice – 84% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Phnom Penh picked an itinerary connecting there.

What is the cheapest layover airport when flying from Washington, D.C. to Phnom Penh?

Average round-trip price for 1-stop flights from Washington, D.C. to Phnom Penh clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Abu Dhabi (AUH) offer the most affordable fares, with an average round-trip price of $1,274.

Which layover airport offers the shortest total travel time from Washington, D.C. to Phnom Penh?

Shortest average total travel time for 1-stop one-way flights from Washington, D.C. to Phnom Penh via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Incheon (ICN) for the shortest journey. The average one-way travel time for flights connecting there is 22h 02m.

Which layover airport has the quickest connection when flying from Washington, D.C. to Phnom Penh?

Average layover duration at different layover airports for 1-stop one-way flights from Washington, D.C. to Phnom Penh, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Incheon (ICN) often has the shortest layovers from Washington, D.C. to Phnom Penh, with an average of 2h 12m.

Find deals

Good to know

Low seasonAugust
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 11% increase in price.

When to book flights from Washington, D.C. to Phnom Penh

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Phnom Penh

  • Do I need a passport to fly between Washington, D.C. and Phnom Penh?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Phnom Penh.

  • Which aircraft models fly most regularly from Washington, D.C. to Phnom Penh?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Phnom Penh?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Phnom Penh, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Phnom Penh from Washington, D.C.?

    Seoul is the most popular layover city among KAYAK users traveling from Washington, D.C. to Phnom Penh.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Phnom Penh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Phnom Penh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Phnom Penh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Phnom Penh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Phnom Penh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Phnom Penh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1188 reviews
8.7Crew
8.1Food
8.3Comfort
8.5Boarding
8.2Entertainment
Airline reviews

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

10.0 ExcellentAnonymous, Nov 2025
MNL - ICN
Read more Korean Air reviews

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

Great service and comfort level. You can have more of vegetarian food options.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Everything you need to know for your flight from Washington, D.C. to Phnom Penh

Information on your arrival and departure airports

Phnom Penh (PNH)