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.

$566 Cheap Flights from Washington, D.C. Dulles Intl Airport to Region of Siem Reap in 2026

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

Round-trip

One-way

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Enter your travel dates to find the best prices.

3:10 pm - 11:15 am

IAD

SAI

33h 05m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,093Multiple Airlines

Wed, May 20 - Thu, May 28

3:10 pm - 9:05 am

IAD

SAI

54h 55m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,176Etihad Airways

Wed, May 20 - Thu, May 28

3:10 pm - 7:05 pm

IAD

SAI

40h 55m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,221Multiple Airlines

Sun, May 17 - Sun, May 24

3:10 pm - 11:15 am

IAD

SAI

33h 05m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,361Multiple Airlines

Wed, May 20 - Thu, May 28

3:10 pm - 11:15 am

IAD

SAI

33h 05m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,475Multiple Airlines

Wed, May 20 - Thu, May 28

3:10 pm - 11:10 am

IAD

SAI

33h 00m

3 stops

1:05 pm - 6:10 pm

SAI

IAD

40h 05m

2 stops

$1,583Multiple Airlines

Sun, May 17 - Sun, May 24

3:10 pm - 4:55 pm

IAD

SAI

38h 45m

2 stops

9:45 am - 9:45 am

SAI

IAD

35h 00m

2 stops

$1,739Etihad Airways

Wed, May 20 - Thu, May 28

10:55 am - 12:20 pm

IAD

SAI

38h 25m

2 stops

11:50 pm - 12:31 am

SAI

IAD

35h 41m

3 stops

$2,014Emirates

Wed, May 20 - Thu, May 28

8:20 pm - 6:45 pm

IAD

SAI

35h 25m

3 stops

1:05 pm - 4:05 pm

SAI

IAD

38h 00m

3 stops

$2,540Multiple Airlines

Wed, May 20 - Thu, May 28

10:20 pm - 9:30 pm

IAD

SAI

36h 10m

3 stops

2:05 pm - 8:40 am

SAI

IAD

53h 35m

3 stops

$2,736Multiple Airlines

Sun, May 17 - Sun, May 24

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

May 20

IAD3:10 pmWashington, D.C. Dulles Intl

54h 55m

2 stops

SAI9:05 amSiem Reap–Angkor Intl

May 28

SAI9:45 amSiem Reap–Angkor Intl

35h 00m

2 stops

IAD9:45 amWashington, D.C. Dulles Intl

$1,176

Etihad Airways

May 20

IAD3:10 pmWashington, D.C. Dulles Intl

38h 45m

2 stops

SAI4:55 pmSiem Reap–Angkor Intl

May 28

SAI9:45 amSiem Reap–Angkor Intl

35h 00m

2 stops

IAD9:45 amWashington, D.C. Dulles Intl

$1,739

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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Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-11:15 am

2 stops33h 05m

Siem Reap–Angkor Intl

Thu 5/28

9:45 am-9:45 am

2 stops35h 00m

$1,093

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-9:05 am

2 stops54h 55m

Siem Reap–Angkor Intl

Thu 5/28

9:45 am-9:45 am

2 stops35h 00m

$1,176

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Sun 5/17

3:10 pm-7:05 pm

2 stops40h 55m

Siem Reap–Angkor Intl

Sun 5/24

9:45 am-9:45 am

2 stops35h 00m

$1,221

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-11:15 am

2 stops33h 05m

Siem Reap–Angkor Intl

Thu 5/28

9:45 am-9:45 am

2 stops35h 00m

$1,361

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-11:15 am

2 stops33h 05m

Siem Reap–Angkor Intl

Thu 5/28

9:45 am-9:45 am

2 stops35h 00m

$1,475

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Sun 5/17

3:10 pm-11:10 am

3 stops33h 00m

Siem Reap–Angkor Intl

Sun 5/24

1:05 pm-6:10 pm

2 stops40h 05m

$1,583

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-4:55 pm

2 stops38h 45m

Siem Reap–Angkor Intl

Thu 5/28

9:45 am-9:45 am

2 stops35h 00m

$1,739

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

10:55 am-12:20 pm

2 stops38h 25m

Siem Reap–Angkor Intl

Thu 5/28

11:50 pm-12:31 am

3 stops35h 41m

$2,014

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Wed 5/20

8:20 pm-6:45 pm

3 stops35h 25m

Siem Reap–Angkor Intl

Thu 5/28

1:05 pm-4:05 pm

3 stops38h 00m

$2,540

Washington, D.C.Siem Reap

IAD - SAI

IADSAI

Washington, D.C. Dulles Intl

Sun 5/17

10:20 pm-9:30 pm

3 stops36h 10m

Siem Reap–Angkor Intl

Sun 5/24

2:05 pm-8:40 am

3 stops53h 35m

$2,736

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl 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. Dulles Intl to Siem Reap?

Etihad Airways and Qatar Airways are the most popular carriers operating from Washington, D.C. Dulles Intl to Siem Reap

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

Fastest flight time	40h 55m
Direct flights	None

The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Siem Reap takes 40h 55m

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.

Search flight deals

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.

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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Cheap flights from Washington, D.C. Dulles Intl Airport to Siem Reap from $566

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

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Region of Siem Reap

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

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Why use momondo?

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Dulles Intl Airport flight routes

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List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

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