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Cheap flights from Washington, D.C. Dulles Intl Airport to Siem Reap from $655

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Emirates Logo
10:30 am - 12:40 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
38h 10m2 stops Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 8:10 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
44h 20m2 stops Bangkok Suvarnabhumi Dubai Intl
$1,215Emirates
Mon, Feb 8 - Thu, Feb 18
Multiple Airlines Logo
12:15 pm - 9:00 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
33h 45m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
9:40 am - 5:31 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
30h 51m2 stops Bangkok Suvarnabhumi Los Angeles Los Angeles
$1,239Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Emirates Logo
10:30 am - 12:40 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
38h 10m2 stops Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 8:10 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
68h 20m2 stops Bangkok Suvarnabhumi Dubai Intl
$1,301Emirates
Sat, Feb 20 - Sat, Mar 6
Multiple Airlines Logo
11:55 pm - 4:10 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
28h 15m3 stops Taipei City Taiwan Taoyuan Intl Hanoi Noibai Luang Prabang
Multiple Airlines Logo
9:55 am - 8:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
23h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,385Multiple Airlines
Sat, Feb 20 - Sat, Mar 6
Emirates Logo
3:15 pm - 9:30 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
43h 15m3 stops Chicago O'Hare Intl Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 8:40 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
43h 50m2 stops Bangkok Suvarnabhumi Dubai Intl
$1,467Emirates
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
11:05 am - 9:00 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
34h 55m3 stops Doha Hamad Intl Phuket City Bangkok Suvarnabhumi
Multiple Airlines Logo
9:35 am - 9:45 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
35h 10m3 stops Ho Chi Minh City Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$1,579Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Emirates Logo
10:30 am - 12:40 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
38h 10m2 stops Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 9:05 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
33h 15m3 stops Bangkok Suvarnabhumi Dubai Intl Chicago O'Hare Intl
$1,606Emirates
Mon, Feb 8 - Thu, Feb 18
Emirates Logo
10:10 pm - 9:10 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
59h 00m3 stops Chicago O'Hare Intl Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 9:05 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
33h 15m3 stops Bangkok Suvarnabhumi Dubai Intl Chicago O'Hare Intl
$1,943Emirates
Mon, Feb 8 - Thu, Feb 18
Multiple Airlines Logo
8:05 pm - 9:15 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
49h 10m3 stops Doha Hamad Intl Kuala Lumpur Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:20 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
38h 35m3 stops Bangkok Suvarnabhumi Kuala Lumpur Intl Doha Hamad Intl
$2,227Multiple Airlines
Sat, Feb 20 - Sat, Mar 6
Multiple Airlines Logo
2:35 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
43h 10m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl
Multiple Airlines Logo
10:20 am - 8:10 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
33h 50m2 stops Ho Chi Minh City Dubai Intl
$2,711Multiple Airlines
Wed, Dec 23 - Sat, Jan 2

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Emirates flights from Washington, D.C. Dulles Intl Airport to Siem Reap

Our best Emirates deals on Washington, D.C. Dulles Intl Airport to Siem Reap flight tickets
Emirates
Feb 8
IAD10:30 amWashington, D.C. Dulles Intl
38h 10m
2 stops
SAI12:40 pmSiem Reap–Angkor Intl
Feb 18
SAI11:50 pmSiem Reap–Angkor Intl
44h 20m
2 stops
IAD8:10 amWashington, D.C. Dulles Intl
$1,215
Emirates
Feb 20
IAD10:30 amWashington, D.C. Dulles Intl
38h 10m
2 stops
SAI12:40 pmSiem Reap–Angkor Intl
Mar 6
SAI11:50 pmSiem Reap–Angkor Intl
68h 20m
2 stops
IAD8:10 amWashington, D.C. Dulles Intl
$1,301
Emirates
Sep 22
IAD3:15 pmWashington, D.C. Dulles Intl
43h 15m
3 stops
SAI9:30 pmSiem Reap–Angkor Intl
Sep 29
SAI11:50 pmSiem Reap–Angkor Intl
43h 50m
2 stops
IAD8:40 amWashington, D.C. Dulles Intl
$1,467

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Siem Reap that are best for you.

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Price

Cheapest round-trip

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Mon 2/8

10:30 am-12:40 pm

2 stops38h 10m

Siem Reap–Angkor Intl

Thu 2/18

11:50 pm-8:10 am

2 stops44h 20m

$1,215

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Tue 9/22

12:15 pm-9:00 am

2 stops33h 45m

Siem Reap–Angkor Intl

Tue 9/29

9:40 am-5:31 am

2 stops30h 51m

$1,239

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Sat 2/20

10:30 am-12:40 pm

2 stops38h 10m

Siem Reap–Angkor Intl

Sat 3/6

11:50 pm-8:10 am

2 stops68h 20m

$1,301
Quickest round-trip

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Sat 2/20

11:55 pm-4:10 pm

3 stops28h 15m

Siem Reap–Angkor Intl

Sat 3/6

9:55 am-8:55 pm

2 stops23h 00m

$1,385

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Tue 9/22

3:15 pm-9:30 pm

3 stops43h 15m

Siem Reap–Angkor Intl

Tue 9/29

11:50 pm-8:40 am

2 stops43h 50m

$1,467

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Tue 9/22

11:05 am-9:00 am

3 stops34h 55m

Siem Reap–Angkor Intl

Tue 9/29

9:35 am-9:45 am

3 stops35h 10m

$1,579

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Mon 2/8

10:30 am-12:40 pm

2 stops38h 10m

Siem Reap–Angkor Intl

Thu 2/18

11:50 pm-9:05 pm

3 stops33h 15m

$1,606

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Mon 2/8

10:10 pm-9:10 pm

3 stops59h 00m

Siem Reap–Angkor Intl

Thu 2/18

11:50 pm-9:05 pm

3 stops33h 15m

$1,943

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Sat 2/20

8:05 pm-9:15 am

3 stops49h 10m

Siem Reap–Angkor Intl

Sat 3/6

1:20 pm-3:55 pm

3 stops38h 35m

$2,227

Washington, D.C.Siem Reap

IAD Washington, D.C. Dulles Intl - SAI Siem Reap–Angkor Intl

IADSAI

Washington, D.C. Dulles Intl

Wed 12/23

2:35 pm-9:45 pm

2 stops43h 10m

Siem Reap–Angkor Intl

Sat 1/2

10:20 am-8:10 am

2 stops33h 50m

$2,711

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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When to book flights from Washington, D.C. Dulles Intl Airport to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Siem Reap (IAD to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Siem Reap

Best Price Found

$655

Fastest flight time

38h 10m

Direct flights

None
The best one-way flight to Siem Reap from Washington, D.C. Dulles Intl Airport in the past 72 hours is $655. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Siem Reap found on momondo in the last 72 hours is $1,215.
The fastest flight from Washington, D.C. Dulles Intl Airport to Siem Reap takes 38h 10m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Siem Reap. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Siem Reap.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Siem Reap

  • How far is Washington, D.C. Dulles Intl to Siem Reap–Angkor Intl by plane?

    The distance between Washington, D.C. Dulles Intl and Siem Reap–Angkor Intl is about 8815.7 mi. A reasonable flight in good conditions will take 38h 10m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Siem Reap–Angkor Intl Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Siem Reap–Angkor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The travel and health documents required for your trip to Siem Reap–Angkor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap–Angkor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Siem Reap

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Siem Reap?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Washington, D.C. Dulles Intl Airport from Siem Reap. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to Siem Reap with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Siem Reap?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Siem Reap. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Siem Reap with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Siem Reap flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Siem Reap?

momondo helps you find the best flight between Washington, D.C. and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Siem Reap right now. Can momondo alert me if prices change?

Price alerts on flights to Siem Reap from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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