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Cheap flights from Washington, D.C. Reagan-National Airport to Siem Reap from $857

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.
Singapore Airlines Logo
9:30 am - 4:00 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
42h 30m2 stops Los Angeles Los Angeles Singapore Changi
Singapore Airlines Logo
10:45 am - 8:00 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
45h 15m2 stops Singapore Changi Los Angeles Los Angeles
$1,911Singapore Airlines
Tue, Jan 5 - Sun, Jan 10
Emirates Logo
3:30 pm - 9:10 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
41h 40m3 stops Chicago O'Hare Intl Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 8:43 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
32h 53m3 stops Bangkok Suvarnabhumi Dubai Intl Chicago O'Hare Intl
$2,050Emirates
Sun, Nov 1 - Tue, Dec 1
Singapore Airlines Logo
9:30 am - 9:40 amDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
37h 10m2 stops Los Angeles Los Angeles Singapore Changi
Singapore Airlines Logo
10:30 am - 8:00 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
44h 30m2 stops Singapore Changi Los Angeles Los Angeles
$2,110Singapore Airlines
Fri, Oct 2 - Sat, Oct 17
Multiple Airlines Logo
8:40 pm - 6:20 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
34h 40m3 stops Toronto Pearson Intl Manila Ninoy Aquino Intl Ho Chi Minh City
Multiple Airlines Logo
11:55 am - 8:55 amSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
32h 00m3 stops Bangkok Don Mueang Intl New Delhi Indira Gandhi Intl Toronto Pearson Intl
$2,640Multiple Airlines
Fri, Oct 2 - Sat, Oct 17
Singapore Airlines Logo
9:30 am - 3:10 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
42h 40m3 stops Los Angeles Los Angeles Tokyo Narita Singapore Changi
Singapore Airlines Logo
10:30 am - 8:00 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
44h 30m2 stops Singapore Changi Los Angeles Los Angeles
$2,659Singapore Airlines
Fri, Oct 2 - Sat, Oct 17
United Airlines Logo
12:40 pm - 9:55 amDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
57h 15m3 stops Houston George Bush Intcntl San Francisco Singapore Changi
United Airlines Logo
10:45 am - 10:29 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
47h 44m2 stops Singapore Changi San Francisco
$2,679United Airlines
Tue, Jan 5 - Sun, Jan 10
United Airlines Logo
7:45 am - 4:00 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
44h 15m2 stops San Francisco Singapore Changi
United Airlines Logo
4:50 pm - 10:29 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
41h 39m2 stops Singapore Changi San Francisco
$3,248United Airlines
Tue, Dec 15 - Thu, Jan 7
Emirates Logo
3:30 pm - 9:10 pmDCA  Washington, D.C. Reagan-National-SAI Siem Reap–Angkor Intl
41h 40m3 stops Chicago O'Hare Intl Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 9:05 pmSAI  Siem Reap–Angkor Intl-DCA Washington, D.C. Reagan-National
33h 15m3 stops Bangkok Suvarnabhumi Dubai Intl Chicago O'Hare Intl
$12,791Emirates
Tue, Dec 15 - Thu, Jan 7

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United Airlines flights from Washington, D.C. Reagan-National Airport to Region of Siem Reap

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Region of Siem Reap flight tickets
United Airlines
Jan 5
DCA12:40 pmWashington, D.C. Reagan-National
57h 15m
3 stops
SAI9:55 amSiem Reap–Angkor Intl
Jan 10
SAI10:45 amSiem Reap–Angkor Intl
47h 44m
2 stops
DCA10:29 pmWashington, D.C. Reagan-National
$2,679
United Airlines
Dec 15
DCA7:45 amWashington, D.C. Reagan-National
44h 15m
2 stops
SAI4:00 pmSiem Reap–Angkor Intl
Jan 7
SAI4:50 pmSiem Reap–Angkor Intl
41h 39m
2 stops
DCA10:29 pmWashington, D.C. Reagan-National
$3,248

Emirates flights from Washington, D.C. Reagan-National Airport to Region of Siem Reap

Our best Emirates deals on Washington, D.C. Reagan-National Airport to Region of Siem Reap flight tickets
Emirates
Nov 1
DCA3:30 pmWashington, D.C. Reagan-National
41h 40m
3 stops
SAI9:10 pmSiem Reap–Angkor Intl
Dec 1
SAI11:50 pmSiem Reap–Angkor Intl
32h 53m
3 stops
DCA8:43 pmWashington, D.C. Reagan-National
$2,050
Emirates
Dec 15
DCA3:30 pmWashington, D.C. Reagan-National
41h 40m
3 stops
SAI9:10 pmSiem Reap–Angkor Intl
Jan 7
SAI11:50 pmSiem Reap–Angkor Intl
33h 15m
3 stops
DCA9:05 pmWashington, D.C. Reagan-National
$12,791

momondo Fare Finder

 
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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Depart

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Price

Cheapest round-trip

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Tue 1/5

9:30 am-4:00 pm

2 stops42h 30m

Siem Reap–Angkor Intl

Sun 1/10

10:45 am-8:00 pm

2 stops45h 15m

$1,911

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Sun 11/1

3:30 pm-9:10 pm

3 stops41h 40m

Siem Reap–Angkor Intl

Tue 12/1

11:50 pm-8:43 pm

3 stops32h 53m

$2,050

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Fri 10/2

9:30 am-9:40 am

2 stops37h 10m

Siem Reap–Angkor Intl

Sat 10/17

10:30 am-8:00 pm

2 stops44h 30m

$2,110
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

Fri 10/2

8:40 pm-6:20 pm

3 stops34h 40m

Siem Reap–Angkor Intl

Sat 10/17

11:55 am-8:55 am

3 stops32h 00m

$2,640

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Fri 10/2

9:30 am-3:10 pm

3 stops42h 40m

Siem Reap–Angkor Intl

Sat 10/17

10:30 am-8:00 pm

2 stops44h 30m

$2,659

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Tue 1/5

12:40 pm-9:55 am

3 stops57h 15m

Siem Reap–Angkor Intl

Sun 1/10

10:45 am-10:29 pm

2 stops47h 44m

$2,679

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Tue 12/15

7:45 am-4:00 pm

2 stops44h 15m

Siem Reap–Angkor Intl

Thu 1/7

4:50 pm-10:29 pm

2 stops41h 39m

$3,248

Washington, D.C.Siem Reap

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

DCASAI

Washington, D.C. Reagan-National

Tue 12/15

3:30 pm-9:10 pm

3 stops41h 40m

Siem Reap–Angkor Intl

Thu 1/7

11:50 pm-9:05 pm

3 stops33h 15m

$12,791
Cheapest one-way

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

$857
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

Wed 10/14

5:57 pm-6:55 pm

3 stops37h 58m

$883

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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. Reagan-National to Siem Reap?

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

Cheap Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Region of Siem Reap

Best Price Found

$857

Fastest flight time

41h 40m

Direct flights

None
The best one-way flight to Region of Siem Reap from Washington, D.C. Reagan-National Airport in the past 72 hours is $857. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Region of Siem Reap found on momondo in the last 72 hours is $1,911.
The fastest flight from Washington, D.C. Reagan-National Airport to Region of Siem Reap takes 41h 40m
There are no direct flights from Washington, D.C. Reagan-National Airport to Region of Siem Reap. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Region of Siem Reap.
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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Siem Reap

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Siem Reap.

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

    The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted 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?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Siem Reap from Washington, D.C..

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

momondo does allow users to show only those flights to Siem Reap from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Siem Reap from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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