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Cheap flights from Phnom Penh to Washington, D.C. from $694

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to Washington, D.C. departing on 12/22. 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 Phnom Penh to Washington, D.C.

Cheap round-trip flights

Air China Logo
12:20 am - 7:30 pmPNH-IAD
30h 10m1 stop
Air China Logo
11:00 pm - 11:05 pmIAD-PNH
37h 05m1 stop
$1,158Air China
Find Deal
Thu, Oct 9 - Fri, Oct 10
Asiana Airlines Logo
11:55 pm - 8:39 pmPNH-IAD
32h 44m2 stops
Asiana Airlines Logo
12:35 pm - 10:55 pmIAD-PNH
46h 20m2 stops
$1,669Asiana Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Delta Logo
11:45 pm - 12:40 amPNH-IAD
36h 55m2 stops
Delta Logo
6:15 am - 10:25 pmIAD-PNH
28h 10m2 stops
$1,688Delta
Find Deal
Fri, Nov 7 - Tue, Nov 11
Etihad Airways Logo
7:55 am - 4:05 pmPNH-IAD
44h 10m1 stop
Etihad Airways Logo
9:10 pm - 6:30 pmIAD-PNH
33h 20m1 stop
$1,734Etihad Airways
Find Deal
Fri, Nov 7 - Tue, Nov 11
Air China Logo
12:25 am - 6:48 amPNH-IAD
42h 23m2 stops
Air China Logo
10:00 pm - 11:10 pmIAD-PNH
37h 10m1 stop
$1,783Air China
Find Deal
Thu, Nov 6 - Tue, Nov 11
Delta Logo
11:45 pm - 4:29 pmPNH-IAD
28h 44m2 stops
Delta Logo
11:50 am - 10:25 pmIAD-PNH
22h 35m1 stop
$1,784Delta
Find Deal
Fri, Nov 7 - Tue, Nov 11
Logo
12:20 am - 7:30 pmPNH-IAD
30h 10m1 stop
Logo
10:05 pm - 11:25 amIAD-PNH
26h 20m2 stops
$2,095
Find Deal
Thu, Oct 9 - Fri, Oct 10
Logo
8:45 pm - 8:40 amPNH-IAD
46h 55m2 stops
Logo
10:55 am - 7:40 pmIAD-PNH
45h 45m2 stops
$5,307
Find Deal
Wed, Sep 24 - Sun, Oct 5
Logo
12:20 am - 8:00 pmPNH-IAD
30h 40m2 stops
Logo
6:10 pm - 8:40 amIAD-PNH
51h 30m2 stops
$5,617
Find Deal
Tue, Sep 23 - Sun, Oct 5
Qatar Airways Logo
5:40 pm - 10:48 pmPNH-IAD
40h 08m3 stops
Qatar Airways Logo
5:37 pm - 4:15 pmIAD-PNH
35h 38m3 stops
$8,125Qatar Airways
Find Deal
Tue, Sep 30 - Sat, Oct 11

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

Our best Delta deals on Phnom Penh to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Nov 7
PNH11:45 pmPhnom Penh Pochentong
36h 55m
2 stops
IAD12:40 amWashington, D.C. Dulles Intl
Nov 11
IAD6:15 amWashington, D.C. Dulles Intl
28h 10m
2 stops
PNH10:25 pmPhnom Penh Pochentong
$1,688
Find similar
Delta
Nov 7
PNH11:45 pmPhnom Penh Pochentong
28h 44m
2 stops
IAD4:29 pmWashington, D.C. Dulles Intl
Nov 11
IAD11:50 amWashington, D.C. Dulles Intl
22h 35m
1 stop
PNH10:25 pmPhnom Penh Pochentong
$1,784
Find similar

Air China flights from Phnom Penh to Washington, D.C. Dulles Intl Airport

Our best Air China deals on Phnom Penh to Washington, D.C. Dulles Intl Airport flight tickets
Air China
Oct 9
PNH12:20 amPhnom Penh Pochentong
30h 10m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
Oct 10
IAD11:00 pmWashington, D.C. Dulles Intl
37h 05m
1 stop
PNH11:05 pmPhnom Penh Pochentong
$1,158
Find similar
Air China
Nov 6
PNH12:25 amPhnom Penh Pochentong
42h 23m
2 stops
IAD6:48 amWashington, D.C. Dulles Intl
Nov 11
IAD10:00 pmWashington, D.C. Dulles Intl
37h 10m
1 stop
PNH11:10 pmPhnom Penh Pochentong
$1,783
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phnom Penh to Washington, D.C. Dulles Intl Airport 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 July 31, 2025.
Use the filters below to find and compare flights from Phnom Penh to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Thu 10/9

12:20 am-7:30 pm

1 stop30h 10m

Washington, D.C. Dulles Intl

Fri 10/10

11:00 pm-11:05 pm

1 stop37h 05m

$1,158

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

11:55 pm-8:39 pm

2 stops32h 44m

Washington, D.C. Dulles Intl

Tue 11/11

12:35 pm-10:55 pm

2 stops46h 20m

$1,669

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

11:45 pm-12:40 am

2 stops36h 55m

Washington, D.C. Dulles Intl

Tue 11/11

6:15 am-10:25 pm

2 stops28h 10m

$1,688

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

7:55 am-4:05 pm

1 stop44h 10m

Washington, D.C. Dulles Intl

Tue 11/11

9:10 pm-6:30 pm

1 stop33h 20m

$1,734

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Thu 11/6

12:25 am-6:48 am

2 stops42h 23m

Washington, D.C. Dulles Intl

Tue 11/11

10:00 pm-11:10 pm

1 stop37h 10m

$1,783

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

11:45 pm-4:29 pm

2 stops28h 44m

Washington, D.C. Dulles Intl

Tue 11/11

11:50 am-10:25 pm

1 stop22h 35m

$1,784

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Thu 10/9

12:20 am-7:30 pm

1 stop30h 10m

Washington, D.C. Dulles Intl

Fri 10/10

10:05 pm-11:25 am

2 stops26h 20m

$2,095

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 9/24

8:45 pm-8:40 am

2 stops46h 55m

Washington, D.C. Dulles Intl

Sun 10/5

10:55 am-7:40 pm

2 stops45h 45m

$5,307

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 9/23

12:20 am-8:00 pm

2 stops30h 40m

Washington, D.C. Dulles Intl

Sun 10/5

6:10 pm-8:40 am

2 stops51h 30m

$5,617

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 9/30

5:40 pm-10:48 pm

3 stops40h 08m

Washington, D.C. Dulles Intl

Sat 10/11

5:37 pm-4:15 pm

3 stops35h 38m

$8,125

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $937. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phnom Penh to Washington, D.C. Dulles Intl Airport for around $2,474.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Phnom Penh in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,799 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,323 on average. Flights to Washington, D.C. Dulles Intl Airport from Phnom Penh in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Phnom Penh to Washington, D.C. Dulles Intl Airport flight prices changed over time?

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

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

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

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

Best Price Found

$694

Fastest flight time

22h 00m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Phnom Penh in the past 72 hours is $694. The best round-trip flight deal from Phnom Penh to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,158.
The fastest flight from Phnom Penh to Washington, D.C. Dulles Intl Airport takes 22h 00m
There are no direct flights from Phnom Penh to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Phnom Penh Pochentong Airport - Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Phnom Penh Pochentong to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Phnom Penh Pochentong to Washington, D.C. Dulles Intl is 8937.3 mi. A reasonable flight in good conditions will take 22h 25m.

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

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

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

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

    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 Phnom Penh Pochentong Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl 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 Phnom Penh to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Phnom Penh to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom $855Free CancellationRating
7.3
93 reviews
Search Air China flights
Korean AirPriceFrom $1,476Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Why use momondo?

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

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 Washington, D.C. from Phnom Penh.

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

Yes. All flights to Washington, D.C. from Phnom Penh on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phnom Penh to Washington, D.C..

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

Yes. momondo can track prices for Phnom Penh to Washington, D.C. 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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