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Cheap Flight Deals from Washington D.C. to Siem Reap

Whether you’re going for a one-way or round-trip to Siem Reap, we’ve got you covered! Check out these different flight options from Washington D.C. below.

  • One way
  • Return
      • IAD13:30
        36h 20m
        2 stops
        SAI13:50
        Sun, Feb 2|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 842AU$ 1,502
        44% OFF
        44% OFF
        AU$ 1,502AU$ 842

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Sun, Feb 2, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 842 including taxes and charges.

      • DCA17:32
        58h 13m
        2 stops
        SAI15:45
        Sat, Feb 1|Washington D.C. - Siem Reap|Alaska Airlines
        AU$ 952AU$ 1,502
        37% OFF
        37% OFF
        AU$ 1,502AU$ 952

        Choose Alaska Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Alaska Airlines departs from Ronald Reagan Washington National Airport on Sat, Feb 1, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 952 including taxes and charges.

      • IAD13:30
        36h 30m
        2 stops
        SAI14:00
        Fri, Jan 31|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 1,000AU$ 1,502
        33% OFF
        33% OFF
        AU$ 1,502AU$ 1,000

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Fri, Jan 31, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,000 including taxes and charges.

      • IAD20:05
        29h 55m
        2 stops
        SAI14:00
        Tue, Feb 18|Washington D.C. - Siem Reap|Qatar Airways
        AU$ 1,025
        AU$ 1,025

        Choose Qatar Airways flights from Washington D.C. to Siem Reap. The one-way connecting flight with Qatar Airways departs from Dulles International Airport on Tue, Feb 18, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,025 including taxes and charges.

      • IAD14:00
        42h
        2 stops
        SAI20:00
        Tue, Feb 18|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 1,041
        AU$ 1,041

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Tue, Feb 18, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,041 including taxes and charges.

      • DCA17:59
        57h 46m
        2 stops
        SAI15:45
        Sat, Feb 1|Washington D.C. - Siem Reap|United Airlines
        AU$ 1,045
        AU$ 1,045

        Choose United Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with United Airlines departs from Ronald Reagan Washington National Airport on Sat, Feb 1, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,045 including taxes and charges.

      • IAD14:00
        36h
        2 stops
        SAI14:00
        Thu, Mar 6|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 1,102
        AU$ 1,102

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Thu, Mar 6, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,102 including taxes and charges.

      • IAD14:00
        42h
        2 stops
        SAI20:00
        Sat, Feb 1|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 1,125
        AU$ 1,125

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Sat, Feb 1, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,125 including taxes and charges.

      • IAD22:25
        34h 35m
        2 stops
        SAI20:00
        Sat, Mar 15|Washington D.C. - Siem Reap|Turkish Airlines
        AU$ 1,127
        AU$ 1,127

        Choose Turkish Airlines flights from Washington D.C. to Siem Reap. The one-way connecting flight with Turkish Airlines departs from Dulles International Airport on Sat, Mar 15, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,127 including taxes and charges.

      • IAD20:05
        29h 45m
        2 stops
        SAI13:50
        Sun, Feb 2|Washington D.C. - Siem Reap|Qatar Airways
        AU$ 1,167
        AU$ 1,167

        Choose Qatar Airways flights from Washington D.C. to Siem Reap. The one-way connecting flight with Qatar Airways departs from Dulles International Airport on Sun, Feb 2, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$ 1,167 including taxes and charges.

      • WAS01:00 pm
        3h 5m
        Nonstop
        REP02:00 pm
        Wed, Feb 5|Washington D.C. - Siem Reap|Turkish Airlines
        Find More Flights
        Find More Flights

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

Washington D.C. to Siem Reap Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. NH101

    All Nippon Airways

    11:05

    IAD

    14.3h

    15:25

    HND

    SMTWTFS
    Search

  2. NH849

    All Nippon Airways

    00:05

    HND

    7.1h

    05:10

    BKK

    SMTWTFS

  3. TG588

    Thai Airways

    07:45

    BKK

    1.0h

    08:45

    SAI

    SMTWTFS

  4. KE094

    Korean Air

    11:50

    IAD

    15.8h

    17:40

    ICN

    SMTWTFS
    Search

  5. KE647

    Korean Air

    23:10

    ICN

    6.8h

    05:00

    SIN

    SMTWTFS

  6. SQ164

    Singapore Airlines

    08:40

    SIN

    2.1h

    09:45

    SAI

    SMTWTFS

  7. UA1757

    United Airlines

    17:30

    IAD

    5.9h

    20:25

    SFO

    SMTWTFS
    Search

  8. UA001

    United Airlines

    22:40

    SFO

    17.3h

    08:00

    SIN

    SMTWTFS

  9. KT321

    AirAsia Cambodia

    12:50

    SIN

    2.2h

    14:00

    SAI

    -MTW-FS

  10. UA698

    United Airlines

    17:59

    DCA

    6.3h

    21:14

    SFO

    SMTWTFS
    Search

  11. UA001

    United Airlines

    22:40

    SFO

    17.3h

    08:00

    SIN

    SMTWTFS

  12. KT321

    AirAsia Cambodia

    12:50

    SIN

    2.2h

    14:00

    SAI

    -MTW-FS

  13. AA8120

    American Airlines

    20:05

    IAD

    12.6h

    16:40

    DOH

    SMTWTFS
    Search

  14. QR942

    Qatar Airways

    20:10

    DOH

    7.6h

    08:45

    SIN

    SMTWTFS

  15. SQ166

    Singapore Airlines

    14:40

    SIN

    2.3h

    15:55

    SAI

    SMTWTFS

  16. QR708

    Qatar Airways

    20:05

    IAD

    12.6h

    16:40

    DOH

    SMTWTFS
    Search

  17. QR942

    Qatar Airways

    20:10

    DOH

    7.6h

    08:45

    SIN

    SMTWTFS

  18. SQ166

    Singapore Airlines

    14:40

    SIN

    2.3h

    15:55

    SAI

    SMTWTFS

  19. QR708

    Qatar Airways

    20:05

    IAD

    12.6h

    16:40

    DOH

    SMTWTFS
    Search

  20. QR942

    Qatar Airways

    20:10

    DOH

    7.6h

    08:45

    SIN

    SMTWTFS

  21. KT321

    AirAsia Cambodia

    12:50

    SIN

    2.2h

    14:00

    SAI

    -MTW-FS

  22. TK008

    Turkish Airlines

    21:25

    IAD

    9.9h

    15:20

    IST

    SMTWTFS
    Search

  23. TK064

    Turkish Airlines

    19:40

    IST

    8.7h

    08:20

    BKK

    SMTWTFS

  24. FD618

    Thai AirAsia

    18:55

    DMK

    1.1h

    20:00

    SAI

    SMT-TFS

  25. EY006

    Etihad Airways

    21:30

    IAD

    12.7h

    19:10

    AUH

    SMTWTFS
    Search

  26. EY498

    Etihad Airways

    21:35

    AUH

    7.5h

    09:05

    SIN

    SMTWTFS

  27. SQ166

    Singapore Airlines

    14:40

    SIN

    2.3h

    15:55

    SAI

    SMTWTFS

  28. EY006

    Etihad Airways

    21:30

    IAD

    12.7h

    19:10

    AUH

    SMTWTFS
    Search

  29. EY498

    Etihad Airways

    21:35

    AUH

    7.5h

    09:05

    SIN

    SMTWTFS

  30. KT321

    AirAsia Cambodia

    12:50

    SIN

    2.2h

    14:00

    SAI

    -MTW-FS
Find more flights and airlines

Best Time to Book Flights from Washington D.C. to Siem Reap

These price trend charts carefully monitor and predict how flight prices from Washington D.C. to Siem Reap will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • When are flight from Washington D.C. (WAS) to Siem Reap (REP) the cheapest?

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

  • How much are flights from Washington D.C. (WAS) to Siem Reap (REP) cost?

    According to Trip.com's data, the lowest price is around AU$ 3,086.

  • What is the transportation method from the main airport to downtown in Siem Reap?

    • The distance from Siem Reap Angkor International Airport to downtown is about 39km, by taxi about 50 minutes.

  • How many airports in Siem Reap (REP)?

    There are 1 airport(s) in Siem Reap (REP): Siem Reap Angkor International Airport.

How to find a cheap flight from Washington D.C. to Siem Reap

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
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 Siem Reap

Off-season for travelMarch
Peak season for travelDecember
Flight distance14,199.61km
Popular airlineEmirates

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