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Flights from Washington D.C. to Siem Reap

Find flight deals from Washington D.C. to Siem Reap for the next 3 months. Book one way flights from $616 or round trip flights from $1,213.

      • IAD 9:00 PM
        28h 15m
        2 stops
        SAI 12:15 PM
        Washington D.C. - Siem Reap | Wed, Sep 2 | Qatar Airways
        SAI 9:40 AM
        41h
        2 stops
        IAD 3:40 PM
        Siem Reap - Washington D.C. | Tue, Sep 8 | Bangkok Airways
        $1,213 $2,230
        46% off
        46% off
        $2,230 $1,213
      • IAD 3:10 PM
        40h 45m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Wed, Sep 2 | Etihad Airways
        SAI 12:55 PM
        55h 50m
        2 stops
        IAD 9:45 AM
        Siem Reap - Washington D.C. | Tue, Sep 8 | Bangkok Airways
        $1,227 $2,230
        45% off
        45% off
        $2,230 $1,227
      • IAD 3:10 PM
        40h 45m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Tue, Sep 1 | Etihad Airways
        SAI 12:55 PM
        31h 50m
        2 stops
        IAD 9:45 AM
        Siem Reap - Washington D.C. | Sun, Sep 6 | Bangkok Airways
        $1,356 $2,230
        39% off
        39% off
        $2,230 $1,356
      • IAD 11:00 PM
        32h 55m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Sun, Aug 30 | Air China
        SAI 9:40 AM
        44h 50m
        2 stops
        IAD 7:30 PM
        Siem Reap - Washington D.C. | Wed, Sep 2 | Bangkok Airways
        $1,366
        39% off
        $2,230 $1,366
      • IAD 9:45 PM
        34h 10m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Tue, Sep 1 | Turkish Airlines
        SAI 12:55 PM
        33h 40m
        2 stops
        IAD 11:35 AM
        Siem Reap - Washington D.C. | Sun, Sep 6 | Bangkok Airways
        $1,391
        38% off
        $2,230 $1,391
      • IAD 1:20 PM
        32h 40m
        2 stops
        SAI 9:00 AM
        Washington D.C. - Siem Reap | Wed, Sep 2 | Turkish Airlines
        SAI 7:35 PM
        35h 15m
        2 stops
        IAD 7:50 PM
        Siem Reap - Washington D.C. | Sun, Sep 6 | Bangkok Airways
        $1,466
        34% off
        $2,230 $1,466
      • IAD 1:15 AM
        30h 5m
        2 stops
        SAI 6:20 PM
        Washington D.C. - Siem Reap | Tue, Sep 8 | EVA Air
        SAI 7:10 PM
        61h 50m
        2 stops
        IAD 10:00 PM
        Siem Reap - Washington D.C. | Mon, Sep 14 | Vietnam Airlines
        $1,525
        32% off
        $2,230 $1,525
      • IAD 9:00 PM
        28h 15m
        2 stops
        SAI 12:15 PM
        Washington D.C. - Siem Reap | Sun, Aug 30 | Qatar Airways
        SAI 9:40 AM
        41h
        2 stops
        IAD 3:40 PM
        Siem Reap - Washington D.C. | Wed, Sep 2 | Bangkok Airways
        $1,532
        31% off
        $2,230 $1,532
      • IAD 12:15 PM
        33h 45m
        2 stops
        SAI 9:00 AM
        Washington D.C. - Siem Reap | Sun, Aug 30 | All Nippon Airways
        SAI 9:40 AM
        59h 25m
        2 stops
        IAD 10:05 AM
        Siem Reap - Washington D.C. | Wed, Sep 2 | Bangkok Airways
        $1,551
        30% off
        $2,230 $1,551
      • DCA 5:00 PM
        29h 40m
        2 stops
        SAI 9:40 AM
        Washington D.C. - Siem Reap | Mon, Aug 31 | Delta Air Lines
        SAI 10:30 AM
        44h 30m
        2 stops
        DCA 8:00 PM
        Siem Reap - Washington D.C. | Sun, Sep 6 | Singapore Airlines
        $1,561
        30% off
        $2,230 $1,561
      • WAS 1:00 PM
        17h 25m
        1 stop
        SAI 2:00 PM
        Washington D.C. - Siem Reap | Tue, Jul 21 | Normal Airline
        SAI 3:00 PM
        6h
        Nonstop
        WAS 4:00 PM
        Siem Reap - Washington D.C. | Thu, Jul 23 | Normal Airline
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      • IAD 3:10 PM
        30h 50m
        2 stops
        SAI 9:00 AM
        Washington D.C. - Siem Reap | Sun, Sep 6 | Etihad Airways
        $616 $1,093
        44% off
        44% off
        $1,093 $616
      • IAD 9:00 PM
        32h 10m
        2 stops
        SAI 4:10 PM
        Washington D.C. - Siem Reap | Thu, Sep 3 | Qatar Airways
        $622 $1,093
        43% off
        43% off
        $1,093 $622
      • IAD 9:00 PM
        32h 10m
        2 stops
        SAI 4:10 PM
        Washington D.C. - Siem Reap | Fri, Sep 4 | Qatar Airways
        $622 $1,093
        43% off
        43% off
        $1,093 $622
      • IAD 3:10 PM
        33h
        2 stops
        SAI 11:10 AM
        Washington D.C. - Siem Reap | Tue, Aug 18 | Etihad Airways
        $639
        42% off
        $1,093 $639
      • IAD 9:00 PM
        32h 10m
        2 stops
        SAI 4:10 PM
        Washington D.C. - Siem Reap | Mon, Aug 24 | Qatar Airways
        $665
        39% off
        $1,093 $665
      • IAD 3:10 PM
        43h 20m
        2 stops
        SAI 9:30 PM
        Washington D.C. - Siem Reap | Thu, Aug 13 | Etihad Airways
        $670
        39% off
        $1,093 $670
      • IAD 9:00 PM
        34h 55m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Sun, Sep 6 | Qatar Airways
        $681
        38% off
        $1,093 $681
      • IAD 9:00 PM
        32h 10m
        2 stops
        SAI 4:10 PM
        Washington D.C. - Siem Reap | Thu, Aug 13 | Qatar Airways
        $694
        37% off
        $1,093 $694
      • IAD 1:50 AM
        30h 5m
        2 stops
        SAI 6:55 PM
        Washington D.C. - Siem Reap | Thu, Aug 13 | EVA Air
        $734
        33% off
        $1,093 $734
      • IAD 1:50 AM
        47h 25m
        2 stops
        SAI 12:15 PM
        Washington D.C. - Siem Reap | Sat, Aug 8 | EVA Air
        $765
        30% off
        $1,093 $765
      • WAS 1:00 PM
        17h 25m
        1 stop
        SAI 2:00 PM
        Washington D.C. - Siem Reap | Tue, Jul 21 | Normal Airline
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Find cheap airlines flights from Washington D.C. to Siem Reap

You can choose from 1 airlines that fly from Washington D.C. to Siem Reap, including Turkish Airlines, Etihad Airways has lowest fares on this route.
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Washington D.C. to Siem Reap according to previous 12 months data from Trip.com.

Flight Info | Washington D.C. to Siem Reap

The distance between Washington D.C. and Siem Reap is approximately 14,199.61 km.

Cheapest one-way flight price$616
Cheapest round-trip ticket price$1,213
Flight distance14,199.61 km
Popular airlineTurkish Airlines
Flight statistics for the Washington D.C.–Siem Reap route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Siem Reap (WAS-SAI)?

    Based on Trip.com data, Etihad Airways offers one-way fares as low as $616 on Cheapest nonstop routes (e.g. IAD to SAI on Sun, Sep 6), while Qatar Airways offers Cheapest nonstop round-trips from $1,213 departing on Wed, Sep 2 and returning on Tue, Sep 8.
  • At the moment, several airlines serve connecting flights from Washington D.C. to Siem Reap, including: Turkish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Siem Reap is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Washington D.C. to Siem Reap, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Sep 6, with one-way flights priced at just $616.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Get exclusive promo codes for Trip.com app users.
  • You can land at any one of the following hubs in Siem Reap, with Dulles International Airport to Siem Reap Angkor International Airport (IAD-SAI) is by far the most common option on this route: Siem Reap Angkor International Airport (SAI).
  • The time difference between Siem Reap and Washington D.C. is 12h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.