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Cheap flights from Washington, D.C. Dulles Intl Airport to Phnom Penh from $805

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Phnom Penh departing on 1/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Phnom Penh

Cheap round-trip flights

Etihad Airways Logo
10:05 pm - 6:30 amIAD-PNH
21h 25m1 stop
Etihad Airways Logo
7:55 am - 3:50 pmPNH-IAD
43h 55m1 stop
$1,199Etihad Airways
Find Deal
Sat, Oct 25 - Tue, Nov 4
Etihad Airways Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Etihad Airways Logo
7:50 pm - 3:50 pmPNH-IAD
32h 00m1 stop
$1,250Etihad Airways
Find Deal
Thu, Jan 1 - Thu, Jan 29
Etihad Airways Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Etihad Airways Logo
7:50 pm - 3:50 pmPNH-IAD
32h 00m1 stop
$1,295Etihad Airways
Find Deal
Tue, Nov 11 - Tue, Nov 18
Etihad Airways Logo
9:10 pm - 6:30 amIAD-PNH
21h 20m1 stop
Etihad Airways Logo
7:50 pm - 3:50 pmPNH-IAD
32h 00m1 stop
$1,400Etihad Airways
Find Deal
Sat, Jan 3 - Thu, Jan 22
Multiple Airlines Logo
8:30 pm - 6:25 pmIAD-PNH
33h 55m3 stops
Multiple Airlines Logo
7:50 pm - 7:30 pmPNH-IAD
35h 40m3 stops
$1,784Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Multiple Airlines Logo
7:50 pm - 7:30 pmPNH-IAD
35h 40m3 stops
$1,814Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Etihad Airways Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Etihad Airways Logo
7:50 pm - 3:50 pmPNH-IAD
32h 00m1 stop
$1,837Etihad Airways
Find Deal
Thu, Dec 25 - Thu, Jan 22
Etihad Airways Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Etihad Airways Logo
7:55 am - 3:50 pmPNH-IAD
43h 55m1 stop
$1,869Etihad Airways
Find Deal
Thu, Dec 25 - Fri, Jan 23
Etihad Airways Logo
9:10 pm - 6:25 pmIAD-PNH
33h 15m1 stop
Etihad Airways Logo
7:55 am - 3:50 pmPNH-IAD
43h 55m1 stop
$1,999Etihad Airways
Find Deal
Thu, Dec 25 - Fri, Jan 9
Multiple Airlines Logo
7:50 pm - 6:25 pmIAD-PNH
34h 35m2 stops
Multiple Airlines Logo
7:50 pm - 3:50 pmPNH-IAD
32h 00m1 stop
$2,005Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18

Etihad Airways flights from Washington, D.C. Dulles Intl Airport to Phnom Penh

Our best Etihad Airways deals on Washington, D.C. Dulles Intl Airport to Phnom Penh flight tickets
Etihad Airways
Oct 25
IAD10:05 pmWashington, D.C. Dulles Intl
21h 25m
1 stop
PNH6:30 amPhnom Penh Pochentong
Nov 4
PNH7:55 amPhnom Penh Pochentong
43h 55m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,199
Find similar
Etihad Airways
Jan 1
IAD9:10 pmWashington, D.C. Dulles Intl
33h 15m
1 stop
PNH6:25 pmPhnom Penh Pochentong
Jan 29
PNH7:50 pmPhnom Penh Pochentong
32h 00m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,250
Find similar
Etihad Airways
Nov 11
IAD9:10 pmWashington, D.C. Dulles Intl
33h 15m
1 stop
PNH6:25 pmPhnom Penh Pochentong
Nov 18
PNH7:50 pmPhnom Penh Pochentong
32h 00m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,295
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sat 10/25

10:05 pm-6:30 am

1 stop21h 25m

Phnom Penh Pochentong

Tue 11/4

7:55 am-3:50 pm

1 stop43h 55m

$1,199

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 1/1

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Thu 1/29

7:50 pm-3:50 pm

1 stop32h 00m

$1,250

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 11/11

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Tue 11/18

7:50 pm-3:50 pm

1 stop32h 00m

$1,295

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sat 1/3

9:10 pm-6:30 am

1 stop21h 20m

Phnom Penh Pochentong

Thu 1/22

7:50 pm-3:50 pm

1 stop32h 00m

$1,400

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 11/11

8:30 pm-6:25 pm

3 stops33h 55m

Phnom Penh Pochentong

Tue 11/18

7:50 pm-7:30 pm

3 stops35h 40m

$1,784

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 11/11

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Tue 11/18

7:50 pm-7:30 pm

3 stops35h 40m

$1,814

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 12/25

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Thu 1/22

7:50 pm-3:50 pm

1 stop32h 00m

$1,837

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 12/25

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Fri 1/23

7:55 am-3:50 pm

1 stop43h 55m

$1,869

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 12/25

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Fri 1/9

7:55 am-3:50 pm

1 stop43h 55m

$1,999

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 11/11

7:50 pm-6:25 pm

2 stops34h 35m

Phnom Penh Pochentong

Tue 11/18

7:50 pm-3:50 pm

1 stop32h 00m

$2,005

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Phnom Penh from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Phnom Penh

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Phnom Penh?

What is the cheapest month to fly to Phnom Penh?

In general, September is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,350. If you aren’t able to travel to Phnom Penh during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,367.

What is the cheapest day to depart on your flight to Phnom Penh?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Phnom Penh is on a Saturday. Travelers who choose to depart for Phnom Penh on a Saturday will often find tickets for as low as $1,543. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Phnom Penh for around $1,705.

What is the cheapest time of day to depart on your flight to Phnom Penh?

According to our data, the cheapest time of day to fly to Phnom Penh is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Phnom Penh in the evening for as low as $1,316. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Phnom Penh are more costly at noon, with an average ticket price of $1,825. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Phnom Penh?

You are more likely to see cheaper flights to Phnom Penh from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around $1,663 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from Washington, D.C. Dulles Intl Airport for as low as $1,396 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Phnom Penh flights?

You could potentially save up to 11% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Phnom Penh flight.

When to book flights from Washington, D.C. Dulles Intl Airport to Phnom Penh

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Phnom Penh according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Phnom Penh (IAD to PNH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Phnom Penh

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Phnom Penh. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Phnom Penh.
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  • How far is Washington, D.C. Dulles Intl to Phnom Penh Pochentong by plane?

    There are 8937.3 mi between Washington, D.C. Dulles Intl and Phnom Penh Pochentong. In terms of flight time, this usually takes a little over 21h 20m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Phnom Penh Pochentong Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Phnom Penh Pochentong Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Phnom Penh Pochentong Airport?

    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 Phnom Penh Pochentong Airport.

  • What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

    The travel and health documents required for your trip to Phnom Penh Pochentong 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 Phnom Penh Pochentong Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Phnom Penh?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Phnom Penh

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Etihad AirwaysPriceFrom $999Free CancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,299Free CancellationRating
7.4
3,624 reviews
Search Qatar Airways flights
Korean AirPriceFrom $1,301Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights
Singapore AirlinesPriceFrom $1,311Free CancellationRating
8.1
1,365 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom $1,334Free CancellationRating
7.3
278 reviews
Search Malaysia Airlines flights

Why use momondo?

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

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 Phnom Penh from Washington, D.C..

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

Yes. momondo allows you to filter the results for Washington, D.C. to Phnom Penh flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Phnom Penh?

Once you have performed a search for Washington, D.C. to Phnom Penh flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Washington, D.C. to Phnom Penh flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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