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Cheap flights from Washington, D.C. Reagan-National Airport to Siem Reap from $625

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Emirates Logo
12:50 pm - 9:10 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
44h 20m3 stops Houston George Bush Intcntl Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 9:11 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
33h 21m3 stops Bangkok Suvarnabhumi Dubai Intl Chicago O'Hare Intl
$3,178Emirates
Thu, Nov 5 - Sat, Nov 14
Multiple Airlines Logo
9:30 am - 4:00 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
42h 30m2 stops Los Angeles Singapore Changi
Multiple Airlines Logo
10:45 am - 5:59 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
43h 14m2 stops Singapore Changi San Francisco
$4,255Multiple Airlines
Thu, Nov 5 - Sat, Nov 14

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

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Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Thu 11/5

12:50 pm-9:10 pm

3 stops44h 20m

Siem Reap–Angkor Intl

Sat 11/14

11:50 pm-9:11 pm

3 stops33h 21m

$3,178

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Thu 11/5

9:30 am-4:00 pm

2 stops42h 30m

Siem Reap–Angkor Intl

Sat 11/14

10:45 am-5:59 pm

2 stops43h 14m

$4,255
Cheapest one-way
Quickest one-way

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Tue 2/9

1:00 pm-11:00 am

3 stops34h 00m

$625

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Wed 2/10

9:30 am-2:50 pm

3 stops41h 20m

$687

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Wed 2/10

9:30 am-9:55 am

2 stops36h 25m

$691

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Tue 2/9

9:30 am-4:00 pm

2 stops42h 30m

$694

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Sun 12/13

9:30 am-8:45 am

3 stops59h 15m

$1,073

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Wed 10/14

5:57 pm-6:55 pm

3 stops37h 58m

$1,086

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Wed 10/14

9:30 am-3:10 pm

2 stops42h 40m

$1,151

Washington, D.C.Siem Reap

DCA Washington, D.C. Reagan-National - SAI Siem Reap–Angkor Intl

DCASAI

Washington, D.C. Reagan-National

Wed 10/14

9:30 am-3:10 pm

2 stops42h 40m

$1,158

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to 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. Reagan-National to Siem Reap–Angkor Intl?

Qatar Airways is the most popular carrier operating from Washington, D.C. Reagan-National to Siem Reap–Angkor Intl

When to book flights from Washington, D.C. Reagan-National Airport to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National 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. Reagan-National Airport to Siem Reap (DCA to SAI) flight deals and tips

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

Best Price Found

$625

Fastest flight time

41h 40m

Direct flights

None
The best one-way flight to Siem Reap from Washington, D.C. Reagan-National Airport in the past 72 hours is $625. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Siem Reap found on momondo in the last 72 hours is $3,178.
The fastest flight from Washington, D.C. Reagan-National Airport to Siem Reap takes 41h 40m
There are no direct flights from Washington, D.C. Reagan-National Airport to Siem Reap. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Siem Reap.
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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Siem Reap

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

    Washington, D.C. Reagan-National and Siem Reap–Angkor Intl are 8822.8 mi apart from one another. Flights usually cover this in 41h 40m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Siem Reap–Angkor Intl Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Reagan-National 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. Reagan-National 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.

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?

All flight searches from Washington, D.C. to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Siem Reap.

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

If you are not ready to book a flight from Washington, D.C. to Siem Reap now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Siem Reap and let you know when they change.

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