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Cheap flight deals from Washington D.C. to Siem Reap Starting at $525

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
  • Round-trip
      • IAD01:30 pm
        36h 20m
        2 stops
        SAI01:50 pm
        Sun, Feb 2|Washington D.C. - Siem Reap|Turkish Airlines
        $525$880
        40% OFF
        40% OFF
        $880$525

        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 $525 including taxes and charges.

      • DCA05:32 pm
        58h 13m
        2 stops
        SAI03:45 pm
        Sat, Feb 1|Washington D.C. - Siem Reap|Alaska Airlines
        $594$880
        33% OFF
        33% OFF
        $880$594

        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 $594 including taxes and charges.

      • IAD01:30 pm
        36h 30m
        2 stops
        SAI02:00 pm
        Fri, Jan 31|Washington D.C. - Siem Reap|Turkish Airlines
        $623$880
        28% OFF
        28% OFF
        $880$623

        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 $623 including taxes and charges.

      • IAD08:05 pm
        29h 55m
        2 stops
        SAI02:00 pm
        Tue, Feb 18|Washington D.C. - Siem Reap|Qatar Airways
        $639
        $639

        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 $639 including taxes and charges.

      • IAD02:00 pm
        42h
        2 stops
        SAI08:00 pm
        Tue, Feb 18|Washington D.C. - Siem Reap|Turkish Airlines
        $649
        $649

        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 $649 including taxes and charges.

      • DCA05:59 pm
        57h 46m
        2 stops
        SAI03:45 pm
        Sat, Feb 1|Washington D.C. - Siem Reap|United Airlines
        $652
        $652

        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 $652 including taxes and charges.

      • IAD02:00 pm
        36h
        2 stops
        SAI02:00 pm
        Thu, Mar 6|Washington D.C. - Siem Reap|Turkish Airlines
        $687
        $687

        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 $687 including taxes and charges.

      • IAD02:00 pm
        42h
        2 stops
        SAI08:00 pm
        Sat, Feb 1|Washington D.C. - Siem Reap|Turkish Airlines
        $701
        $701

        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 $701 including taxes and charges.

      • IAD10:25 pm
        34h 35m
        2 stops
        SAI08:00 pm
        Sat, Mar 15|Washington D.C. - Siem Reap|Turkish Airlines
        $702
        $702

        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 $702 including taxes and charges.

      • IAD08:05 pm
        29h 45m
        2 stops
        SAI01:50 pm
        Sun, Feb 2|Washington D.C. - Siem Reap|Qatar Airways
        $727
        $727

        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 $727 including taxes and charges.

      • WAS01:00 pm
        3h 5m
        Nonstop
        REP02:00 pm
        Tue, Feb 4|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 schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. KE094

    Korean Air

    01:15 pm

    IAD

    15.4h

    05:40 pm

    ICN

    SMTWTFS
    Search

  2. KE647

    Korean Air

    11:35 pm

    ICN

    6.4h

    05:00 am

    SIN

    SMTWTFS

  3. SQ164

    Singapore Airlines

    08:25 am

    SIN

    2.3h

    09:40 am

    SAI

    SMTWTFS

  4. UA698

    United Airlines

    05:59 pm

    DCA

    6.3h

    09:14 pm

    SFO

    SMTWTFS
    Search

  5. UA001

    United Airlines

    10:40 pm

    SFO

    17.1h

    06:45 am

    SIN

    SMTWTFS

  6. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -MTW-FS

  7. UA1757

    United Airlines

    06:05 pm

    IAD

    5.8h

    08:50 pm

    SFO

    SMTWTFS
    Search

  8. UA001

    United Airlines

    10:40 pm

    SFO

    17.1h

    06:45 am

    SIN

    SMTWTFS

  9. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -MTW-FS

  10. AA8120

    American Airlines

    09:05 pm

    IAD

    12.7h

    04:45 pm

    DOH

    SMTWTFS
    Search

  11. QR942

    Qatar Airways

    07:55 pm

    DOH

    8.1h

    09:00 am

    SIN

    SMTWTFS

  12. SQ166

    Singapore Airlines

    01:50 pm

    SIN

    2.3h

    03:05 pm

    SAI

    SMTWTFS

  13. QR708

    Qatar Airways

    09:05 pm

    IAD

    12.7h

    04:45 pm

    DOH

    SMTWTFS
    Search

  14. QR942

    Qatar Airways

    07:55 pm

    DOH

    8.1h

    09:00 am

    SIN

    SMTWTFS

  15. SQ166

    Singapore Airlines

    01:50 pm

    SIN

    2.3h

    03:05 pm

    SAI

    SMTWTFS

  16. QR708

    Qatar Airways

    09:05 pm

    IAD

    12.7h

    04:45 pm

    DOH

    SMTWTFS
    Search

  17. QR942

    Qatar Airways

    07:55 pm

    DOH

    8.1h

    09:00 am

    SIN

    SMTWTFS

  18. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -MTW-FS

  19. TK008

    Turkish Airlines

    09:40 pm

    IAD

    10.2h

    02:50 pm

    IST

    SMTWTFS
    Search

  20. TK064

    Turkish Airlines

    08:00 pm

    IST

    9.8h

    09:50 am

    BKK

    SMTWTFS

  21. FD618

    Thai AirAsia

    07:30 pm

    DMK

    1.0h

    08:30 pm

    SAI

    SMT-TFS

  22. EY006

    Etihad Airways

    10:00 pm

    IAD

    13.0h

    07:00 pm

    AUH

    SMTWTFS
    Search

  23. EY498

    Etihad Airways

    10:05 pm

    AUH

    7.7h

    09:45 am

    SIN

    SMTWTFS

  24. SQ166

    Singapore Airlines

    01:50 pm

    SIN

    2.3h

    03:05 pm

    SAI

    SMTWTFS

  25. EY006

    Etihad Airways

    10:00 pm

    IAD

    13.0h

    07:00 pm

    AUH

    SMTWTFS
    Search

  26. EY498

    Etihad Airways

    10:05 pm

    AUH

    7.7h

    09:45 am

    SIN

    SMTWTFS

  27. KT321

    AirAsia Cambodia

    12:50 pm

    SIN

    2.2h

    02:00 pm

    SAI

    -MTW-FS

  28. NH101

    All Nippon Airways

    11:05 am

    IAD

    14.3h

    03:25 pm

    HND

    SMTWTFS
    Search

  29. NH849

    All Nippon Airways

    12:05 am

    HND

    6.5h

    04:35 am

    BKK

    SMTWTFS

  30. TG588

    Thai Airways

    07:45 am

    BKK

    1.0h

    08:45 am

    SAI

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly 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.

Frequently Asked Questions

  • When are flight tickets 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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

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

    According to Trip.com's data, the lowest price is around $1,923.

  • 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 39 km. It takes about 50 minutes by taxi.

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

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
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 Info | Washington D.C. to Siem Reap

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

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