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Cheap flights from District of Columbia to Phnom Penh from $3,256

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Phnom Penh departing on 7/30. 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 District of Columbia to Phnom Penh

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
7:15 pm - 10:00 am
IAD
-
PNH
51h 45m
2 stops
British Airways Logo
6:20 pm - 7:40 pm
PNH
-
IAD
36h 20m
2 stops
$3,256British Airways
Thu, Jul 30 - Tue, Aug 11
Multiple Airlines Logo
7:15 pm - 10:00 am
IAD
-
PNH
51h 45m
2 stops
Multiple Airlines Logo
6:20 pm - 3:45 pm
PNH
-
IAD
32h 25m
3 stops
$3,273Multiple Airlines
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
10:25 pm - 10:00 am
IAD
-
PNH
48h 35m
2 stops
British Airways Logo
6:20 pm - 7:40 pm
PNH
-
IAD
36h 20m
2 stops
$3,312British Airways
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
10:25 pm - 10:00 am
IAD
-
PNH
48h 35m
2 stops
British Airways Logo
6:20 pm - 7:40 pm
PNH
-
IAD
36h 20m
2 stops
$3,313British Airways
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
7:15 pm - 10:00 am
IAD
-
PNH
51h 45m
2 stops
British Airways Logo
6:20 pm - 3:45 pm
PNH
-
IAD
32h 25m
3 stops
$3,411British Airways
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
10:25 pm - 10:00 am
IAD
-
PNH
48h 35m
2 stops
British Airways Logo
6:20 pm - 7:15 pm
PNH
-
IAD
35h 55m
3 stops
$3,412British Airways
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
7:15 pm - 10:00 am
IAD
-
PNH
51h 45m
2 stops
British Airways Logo
6:20 pm - 7:15 pm
PNH
-
IAD
35h 55m
3 stops
$3,466British Airways
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
7:15 pm - 10:00 am
IAD
-
PNH
51h 45m
2 stops
British Airways Logo
6:20 pm - 7:40 pm
PNH
-
IAD
36h 20m
2 stops
$4,633British Airways
Thu, Jul 30 - Tue, Aug 11
Multiple Airlines Logo
10:25 pm - 10:00 am
IAD
-
PNH
48h 35m
2 stops
Multiple Airlines Logo
6:20 pm - 3:30 pm
PNH
-
IAD
32h 10m
3 stops
$4,651Multiple Airlines
Thu, Jul 30 - Tue, Aug 11
British Airways Logo
10:25 pm - 10:00 am
IAD
-
PNH
48h 35m
2 stops
British Airways Logo
6:20 pm - 8:20 pm
PNH
-
IAD
37h 00m
2 stops
$4,715British Airways
Thu, Jul 30 - Tue, Aug 11

British Airways flights from District of Columbia to Phnom Penh

Our best British Airways deals on District of Columbia to Phnom Penh flight tickets
British Airways
Jul 30
IAD7:15 pmWashington, D.C. Dulles Intl
51h 45m
2 stops
PNH10:00 amPhnom Penh Pochentong
Aug 11
PNH6:20 pmPhnom Penh Pochentong
36h 20m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
$3,256
British Airways
Jul 30
IAD10:25 pmWashington, D.C. Dulles Intl
48h 35m
2 stops
PNH10:00 amPhnom Penh Pochentong
Aug 11
PNH6:20 pmPhnom Penh Pochentong
36h 20m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
$3,312
British Airways
Jul 30
IAD10:25 pmWashington, D.C. Dulles Intl
48h 35m
2 stops
PNH10:00 amPhnom Penh Pochentong
Aug 11
PNH6:20 pmPhnom Penh Pochentong
36h 20m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
$3,313

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 April 17, 2026.
Use the filters below to find and compare flights from District of Columbia to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:40 pm

2 stops36h 20m

$3,256

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-3:45 pm

3 stops32h 25m

$3,273

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:40 pm

2 stops36h 20m

$3,312

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:40 pm

2 stops36h 20m

$3,313

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-3:45 pm

3 stops32h 25m

$3,411

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:15 pm

3 stops35h 55m

$3,412

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:15 pm

3 stops35h 55m

$3,466

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

7:15 pm-10:00 am

2 stops51h 45m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-7:40 pm

2 stops36h 20m

$4,633
Quickest round-trip

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-3:30 pm

3 stops32h 10m

$4,651

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 7/30

10:25 pm-10:00 am

2 stops48h 35m

Phnom Penh Pochentong

Tue 8/11

6:20 pm-8:20 pm

2 stops37h 00m

$4,715

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Phnom Penh from

How to get the cheapest flight ticket from District of Columbia 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

Can stopping save me money on District of Columbia to Phnom Penh flights?

You could potentially save up to 11% on your flight if you consider stops on a District of Columbia to Phnom Penh flight.

Cheap District of Columbia to Phnom Penh flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Phnom Penh

Fastest flight time

32h 25m

Direct flights

None
The fastest flight from District of Columbia to Phnom Penh takes 32h 25m
There are no direct flights from District of Columbia to Phnom Penh. There are no popular flight routes from District of Columbia to Phnom Penh.
Search flight deals

Frequently asked questions about flying from District of Columbia to Phnom Penh

  • When did momondo last update prices for flights from District of Columbia to Phnom Penh Pochentong Airport?

    Prices for flights from District of Columbia to Phnom Penh Pochentong Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Phnom Penh Pochentong Airport?

  • How old do you have to be to fly from District of Columbia to Phnom Penh Pochentong Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Phnom Penh Pochentong Airport.

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

    The travel and health documents you'll need for your trip to Phnom Penh Pochentong Airport 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 Phnom Penh Pochentong Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Phnom Penh

Compare and see reviews for airlines that fly from District of Columbia to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $1,254Free CancellationRating
8.4
1,208 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $1,415Free CancellationRating
8.0
518 reviews
Search Asiana Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Phnom Penh?

Finding the right flight to Phnom Penh from District of Columbia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Phnom Penh quick and easy, saving you time and money.

Can I find flights from District of Columbia to Phnom Penh with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Phnom Penh from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Phnom Penh?

Once you have performed a search for District of Columbia 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 District of Columbia to Phnom Penh right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia to Phnom Penh flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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