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Cheap flights from Washington, D.C. Dulles Intl Airport to Siem Reap from $506

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.
Multiple Airlines Logo
12:20 pm - 9:15 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
32h 55m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
6:40 pm - 3:40 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
33h 00m2 stops Ho Chi Minh City Tokyo Haneda
$2,110Multiple Airlines
Tue, Dec 22 - Sun, Dec 27
Etihad Airways Logo
2:25 pm - 9:15 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
30h 50m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
7:25 pm - 9:00 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
49h 35m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,150Etihad Airways
Sun, Dec 27 - Sun, Jan 3
Multiple Airlines Logo
2:25 pm - 12:40 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
34h 15m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
12:50 pm - 9:00 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
32h 10m3 stops Phnom Penh Techo Intl Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,602Multiple Airlines
Tue, Dec 22 - Sun, Dec 27
Multiple Airlines Logo
5:15 pm - 5:15 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
36h 00m3 stops Dublin Paris Charles de Gaulle Ho Chi Minh City
Multiple Airlines Logo
12:50 pm - 9:00 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
32h 10m3 stops Phnom Penh Techo Intl Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,920Multiple Airlines
Tue, Dec 22 - Sun, Dec 27
Multiple Airlines Logo
6:00 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
36h 45m3 stops Frankfurt am Main Vienna Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
9:55 am - 3:30 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
41h 35m2 stops Bangkok Suvarnabhumi Zurich
$3,672Multiple Airlines
Sun, Dec 27 - Sun, Jan 3
Qatar Airways Logo
8:05 pm - 9:15 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
49h 10m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
1:20 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
38h 35m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$6,651Qatar Airways
Mon, Jan 25 - Mon, Feb 1
Qatar Airways Logo
8:05 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
58h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
7:25 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
56h 30m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$6,653Qatar Airways
Mon, Jan 25 - Tue, Feb 2
Qatar Airways Logo
8:05 pm - 9:15 amIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
49h 10m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
7:25 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
56h 30m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$6,653Qatar Airways
Tue, Jan 26 - Tue, Feb 2
Emirates Logo
10:35 am - 9:10 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
46h 35m2 stops Dubai Intl Bangkok Suvarnabhumi
Emirates Logo
11:50 pm - 8:35 amSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
68h 45m2 stops Bangkok Suvarnabhumi Dubai Intl
$7,001Emirates
Sun, Jan 31 - Thu, Feb 4
Austrian Airlines Logo
6:10 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-SAI Siem Reap–Angkor Intl
36h 35m2 stops Vienna Intl Bangkok Suvarnabhumi
Austrian Airlines Logo
9:55 am - 2:10 pmSAI  Siem Reap–Angkor Intl-IAD Washington, D.C. Dulles Intl
40h 15m2 stops Bangkok Suvarnabhumi Vienna Intl
$7,085Austrian Airlines
Mon, Jan 25 - Thu, Feb 4

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Etihad Airways flights from Washington, D.C. Dulles Intl Airport to Region of Siem Reap

Our best Etihad Airways deals on Washington, D.C. Dulles Intl Airport to Region of Siem Reap flight tickets
Etihad Airways
Dec 27
IAD2:25 pmWashington, D.C. Dulles Intl
30h 50m
2 stops
SAI9:15 amSiem Reap–Angkor Intl
Jan 3
SAI7:25 pmSiem Reap–Angkor Intl
49h 35m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$2,150
Etihad Airways
Jan 27
IAD2:25 pmWashington, D.C. Dulles Intl
30h 50m
2 stops
SAI9:15 amSiem Reap–Angkor Intl
Feb 3
SAI9:55 amSiem Reap–Angkor Intl
35h 05m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$7,228
Etihad Airways
Jan 28
IAD2:25 pmWashington, D.C. Dulles Intl
30h 50m
2 stops
SAI9:15 amSiem Reap–Angkor Intl
Feb 3
SAI9:55 amSiem Reap–Angkor Intl
35h 05m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$7,230

Qatar Airways flights from Washington, D.C. Dulles Intl Airport to Region of Siem Reap

Our best Qatar Airways deals on Washington, D.C. Dulles Intl Airport to Region of Siem Reap flight tickets
Qatar Airways
Jan 25
IAD8:05 pmWashington, D.C. Dulles Intl
49h 10m
2 stops
SAI9:15 amSiem Reap–Angkor Intl
Feb 1
SAI1:20 pmSiem Reap–Angkor Intl
38h 35m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$6,651
Qatar Airways
Jan 25
IAD8:05 pmWashington, D.C. Dulles Intl
58h 40m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Feb 2
SAI7:25 pmSiem Reap–Angkor Intl
56h 30m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$6,653

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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Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Tue 12/22

12:20 pm-9:15 am

2 stops32h 55m

Siem Reap–Angkor Intl

Sun 12/27

6:40 pm-3:40 pm

2 stops33h 00m

$2,110

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 12/27

2:25 pm-9:15 am

2 stops30h 50m

Siem Reap–Angkor Intl

Sun 1/3

7:25 pm-9:00 am

2 stops49h 35m

$2,150

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Tue 12/22

2:25 pm-12:40 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Sun 12/27

12:50 pm-9:00 am

3 stops32h 10m

$2,602

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Tue 12/22

5:15 pm-5:15 pm

3 stops36h 00m

Siem Reap–Angkor Intl

Sun 12/27

12:50 pm-9:00 am

3 stops32h 10m

$2,920

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 12/27

6:00 pm-6:45 pm

3 stops36h 45m

Siem Reap–Angkor Intl

Sun 1/3

9:55 am-3:30 pm

2 stops41h 35m

$3,672

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Mon 1/25

8:05 pm-9:15 am

2 stops49h 10m

Siem Reap–Angkor Intl

Mon 2/1

1:20 pm-3:55 pm

2 stops38h 35m

$6,651

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Mon 1/25

8:05 pm-6:45 pm

2 stops58h 40m

Siem Reap–Angkor Intl

Tue 2/2

7:25 pm-3:55 pm

2 stops56h 30m

$6,653

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Tue 1/26

8:05 pm-9:15 am

2 stops49h 10m

Siem Reap–Angkor Intl

Tue 2/2

7:25 pm-3:55 pm

2 stops56h 30m

$6,653

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Sun 1/31

10:35 am-9:10 pm

2 stops46h 35m

Siem Reap–Angkor Intl

Thu 2/4

11:50 pm-8:35 am

2 stops68h 45m

$7,001

Washington, D.C.Siem Reap

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

IADSAI

Washington, D.C. Dulles Intl

Mon 1/25

6:10 pm-6:45 pm

2 stops36h 35m

Siem Reap–Angkor Intl

Thu 2/4

9:55 am-2:10 pm

2 stops40h 15m

$7,085

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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Cheap Washington, D.C. Dulles Intl 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. Dulles Intl Airport to Region of Siem Reap

Best Price Found

$506

Fastest flight time

30h 50m

Direct flights

None
The best one-way flight to Region of Siem Reap from Washington, D.C. Dulles Intl Airport in the past 72 hours is $506. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Region of Siem Reap found on momondo in the last 72 hours is $2,110.
The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Siem Reap takes 30h 50m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Region of Siem Reap. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Region of Siem Reap.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Siem Reap

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl 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.

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 Region of Siem Reap?

    Price Alerts will notify you by email when the price for flights to Region of Siem Reap from Washington, D.C. Dulles Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to Region of 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?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Siem Reap. momondo saves you time and could save you money on your trip.

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?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Washington, D.C. and alert you when they change.

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