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Cheap Flights from Washington D.C. to Phnom Penh
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Cheap Flights from Washington D.C. to Phnom Penh starting at S$ 997

Book one-way or return flights from Washington D.C. to Phnom Penh from as little as S$ 997. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip
      • IAD20:50
        32h 35m
        1 stop
        PNH16:25
        Sun, May 12|Washington D.C. - Phnom Penh|Qatar Airways
        S$ 997S$ 2,101
        53% OFF
        53% OFF
        S$ 2,101S$ 997
      • IAD21:05
        32h 10m
        1 stop
        PNH16:15
        Mon, May 6|Washington D.C. - Phnom Penh|Qatar Airways
        S$ 1,022S$ 2,101
        51% OFF
        51% OFF
        S$ 2,101S$ 1,022
      • IAD10:55
        42h 30m
        1 stop
        PNH16:25
        Wed, May 8|Washington D.C. - Phnom Penh|Qatar Airways
        S$ 1,061S$ 2,101
        50% OFF
        50% OFF
        S$ 2,101S$ 1,061
      • IAD20:50
        32h 35m
        1 stop
        PNH16:25
        Wed, May 15|Washington D.C. - Phnom Penh|Qatar Airways
        S$ 1,185
        S$ 1,185
      • IAD21:05
        32h 10m
        1 stop
        PNH16:15
        Sun, May 5|Washington D.C. - Phnom Penh|American Airlines
        S$ 1,295
        S$ 1,295
      • IAD13:25
        21h 45m
        1 stop
        PNH22:10
        Tue, May 7|Washington D.C. - Phnom Penh|Delta Air Lines
        S$ 1,298
        S$ 1,298
      • IAD21:05
        32h 10m
        1 stop
        PNH16:15
        Sun, Apr 28|Washington D.C. - Phnom Penh|American Airlines
        S$ 1,343
        S$ 1,343
      • IAD10:55
        42h 5m
        1 stop
        PNH16:00
        Wed, May 1|Washington D.C. - Phnom Penh|American Airlines
        S$ 1,350
        S$ 1,350
      • IAD13:25
        21h 45m
        1 stop
        PNH22:10
        Sun, May 12|Washington D.C. - Phnom Penh|Delta Air Lines
        S$ 1,356
        S$ 1,356
      • IAD13:25
        21h 45m
        1 stop
        PNH22:10
        Wed, May 1|Washington D.C. - Phnom Penh|Korean Air
        S$ 1,357
        S$ 1,357
      • WAS13:00
        3h 5m
        Direct
        PNH14:00
        Sun, May 5|Washington D.C. - Phnom Penh|Qatar Airways
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Washington D.C. to Phnom Penh? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Washington D.C. to Phnom Penh. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Washington D.C. to Phnom Penh

View airlines operating flights from Washington D.C. to Phnom Penh. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Saudia
From S$ 736
Alaska Airlines
From S$ 773
Qatar Airways
From S$ 843
American Airlines
From S$ 909
Delta Air Lines
From S$ 913
Etihad Airways
From S$ 947
United Airlines
From S$ 951
Ana
From S$ 969
Turkish Airlines
From S$ 1,012
Jetblue Airways
From S$ 1,128
ANA airlines

Find more flights and airlines

Alternative Routes from Washington D.C. to Phnom Penh

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Washington D.C. to Phnom Penh.

  • Cheapest
    Saudia
    IAD
    19:10
    36h 5m
    2 transfer
    PNH
    18:15
    Dulles International Airport - Phnom Penh International Airport
    Sat, May 11Saudia
    S$ 736
  • American Airlines
    DCA
    17:35
    53h 40m
    2 transfer
    PNH
    10:15
    Ronald Reagan Washington National Airport - Phnom Penh International Airport
    Sat, May 4American Airlines
    S$ 909
  • American Airlines
    DCA
    17:35
    53h 40m
    2 transfer
    PNH
    10:15
    Ronald Reagan Washington National Airport - Phnom Penh International Airport
    Sat, May 4American Airlines
    S$ 909
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Washington D.C. (WAS) to Phnom Penh (PNH) the cheapest?

    Airlines adjust prices for flights from Washington D.C. to Phnom Penh based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much is a flight from Washington D.C. (WAS) to Phnom Penh (PNH) cost?

    According to Trip.com's data, the lowest price is around S$ 2,834.

  • What is the transportation method from the main airport to downtown in Phnom Penh?

    • The distance from Phnom Penh International Airport to downtown is about 7km, by taxi about 20 minutes.

  • How many airports in Phnom Penh?

    There are 1 airports near Phnom Penh: Phnom Penh International Airport.

How to find a cheap flight from Washington D.C. to Phnom Penh

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to Phnom Penh. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information from Washington D.C. to Phnom Penh

Cheapest direct flight price

S$ 996

Cheapest month

March

Peak season for travel

July

Flight distance

14,404.14km

Popular airline

Alaska Airlines

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