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

1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 pm - 6:55 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
43h 40m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
7:10 pm - 10:05 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
25h 55m2 stops Ho Chi Minh City Tokyo Haneda
$1,201Multiple Airlines
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
11:10 am - 8:45 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
33h 35m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
6:40 pm - 9:10 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
26h 30m2 stops Ho Chi Minh City Tokyo Haneda
$1,202Multiple Airlines
Mon, Feb 8 - Fri, Feb 19
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
11:55 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
30h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
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
$1,239Multiple Airlines
Mon, Feb 8 - Mon, Feb 22
Multiple Airlines Logo
5:35 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
37h 10m2 stops Munich Franz Josef Strauss Bangkok Suvarnabhumi
Multiple Airlines Logo
4:50 pm - 5:00 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
36h 10m2 stops Singapore Changi Zurich
$1,268Multiple Airlines
Mon, Feb 8 - Tue, Feb 23
Emirates Logo
10:30 am - 9:10 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
46h 40m2 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
$1,272Emirates
Sun, Feb 7 - Tue, Feb 23
Multiple Airlines Logo
6:00 pm - 9:55 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
27h 55m2 stops Frankfurt am Main Singapore Changi
Multiple Airlines Logo
4:50 pm - 5:00 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
36h 10m2 stops Singapore Changi Zurich
$1,283Multiple Airlines
Tue, Feb 9 - Mon, Feb 22
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
Emirates Logo
10:30 am - 9:10 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
46h 40m2 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
$1,307Emirates
Sun, Feb 7 - Sat, Feb 20
Lufthansa Logo
5:35 pm - 9:55 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
52h 20m2 stops Munich Franz Josef Strauss Singapore Changi
Lufthansa Logo
4:50 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
35h 05m2 stops Singapore Changi Frankfurt am Main
$1,311Lufthansa
Sun, Feb 7 - Wed, Feb 24

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Emirates flights from Washington, D.C. to Region of Siem Reap

Our best Emirates deals on Washington, D.C. to Region of 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 7
IAD10:30 amWashington, D.C. Dulles Intl
46h 40m
2 stops
SAI9:10 pmSiem Reap–Angkor Intl
Feb 23
SAI11:50 pmSiem Reap–Angkor Intl
44h 20m
2 stops
IAD8:10 amWashington, D.C. Dulles Intl
$1,272
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

Singapore Airlines flights from Washington, D.C. to Region of Siem Reap

Our best Singapore Airlines deals on Washington, D.C. to Region of Siem Reap flight tickets
Singapore Airlines
Feb 9
BWI8:37 amBaltimore/Washington
43h 23m
2 stops
SAI4:00 pmSiem Reap–Angkor Intl
Feb 23
SAI10:45 amSiem Reap–Angkor Intl
42h 51m
2 stops
BWI5:36 pmBaltimore/Washington
$1,396
Singapore Airlines
Feb 9
DCA9:30 amWashington, D.C. Reagan-National
42h 30m
2 stops
SAI4:00 pmSiem Reap–Angkor Intl
Feb 23
SAI10:45 amSiem Reap–Angkor Intl
45h 15m
2 stops
DCA8:00 pmWashington, D.C. Reagan-National
$1,406
Singapore Airlines
Feb 8
DCA9:30 amWashington, D.C. Reagan-National
42h 30m
2 stops
SAI4:00 pmSiem Reap–Angkor Intl
Feb 18
SAI10:45 amSiem Reap–Angkor Intl
45h 15m
2 stops
DCA8:00 pmWashington, D.C. Reagan-National
$1,407

momondo Fare Finder

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

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Route

Depart

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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

Sat 9/19

12:15 pm-6:55 pm

2 stops43h 40m

Siem Reap–Angkor Intl

Sat 9/26

7:10 pm-10:05 am

2 stops25h 55m

$1,201

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

11:10 am-8:45 am

2 stops33h 35m

Siem Reap–Angkor Intl

Fri 2/19

6:40 pm-9:10 am

2 stops26h 30m

$1,202

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
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

Mon 2/8

11:55 pm-6:45 pm

2 stops30h 50m

Siem Reap–Angkor Intl

Mon 2/22

9:55 am-8:55 pm

2 stops23h 00m

$1,239

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

5:35 pm-6:45 pm

2 stops37h 10m

Siem Reap–Angkor Intl

Tue 2/23

4:50 pm-5:00 pm

2 stops36h 10m

$1,268

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 2/7

10:30 am-9:10 pm

2 stops46h 40m

Siem Reap–Angkor Intl

Tue 2/23

11:50 pm-8:10 am

2 stops44h 20m

$1,272

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Tue 2/9

6:00 pm-9:55 am

2 stops27h 55m

Siem Reap–Angkor Intl

Mon 2/22

4:50 pm-5:00 pm

2 stops36h 10m

$1,283

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

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 2/7

10:30 am-9:10 pm

2 stops46h 40m

Siem Reap–Angkor Intl

Sat 2/20

11:50 pm-8:10 am

2 stops68h 20m

$1,307

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 2/7

5:35 pm-9:55 am

2 stops52h 20m

Siem Reap–Angkor Intl

Wed 2/24

4:50 pm-3:55 pm

2 stops35h 05m

$1,311

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. to Region of Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Siem Reap?

Singapore Airlines and Qatar Airways are the most popular carriers operating from Washington, D.C. to Siem Reap

Cheap Washington, D.C. to Region of Siem Reap flight deals and tips

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

Best Price Found

$655

Fastest flight time

33h 45m

Direct flights

None
The best one-way flight to Region of Siem Reap from Washington, D.C. in the past 72 hours is $655. The best round-trip flight deal from Washington, D.C. to Region of Siem Reap found on momondo in the last 72 hours is $1,201.
The fastest flight from Washington, D.C. to Region of Siem Reap takes 33h 45m
There are no direct flights from Washington, D.C. to Region of Siem Reap. There are no popular flight routes from Washington, D.C. to Region of Siem Reap.
Search flight deals

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

  • When did momondo last update prices for flights from Washington, D.C. to Siem Reap?

    Prices for flights from Washington, D.C. to Siem Reap are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. to Siem Reap?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

    The required travel and health documents for your Siem Reap trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

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

Yes. momondo enables you to select and highlight flights to Siem Reap from Washington, D.C. with this policy.

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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