Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to Phnom Penh from $968

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Phnom Penh departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. to Phnom Penh

Cheap round-trip flights

Air China Logo
11:00 pm - 11:10 pmIAD-PNH
37h 10m1 stop
Air China Logo
12:25 am - 6:30 pmPNH-IAD
30h 05m1 stop
$968Air China
Find Deal
vie., oct. 24 - jue., nov. 6
Air China Logo
10:00 pm - 11:10 pmIAD-PNH
37h 10m1 stop
Air China Logo
12:25 am - 6:30 pmPNH-IAD
30h 05m1 stop
$990Air China
Find Deal
mar., nov. 4 - jue., nov. 20
Korean Air Logo
8:35 am - 10:10 pmDCA-PNH
26h 35m2 stops
Korean Air Logo
11:45 pm - 6:05 pmPNH-DCA
30h 20m2 stops
$1,050Korean Air
Find Deal
lun., ago. 25 - dom., nov. 23
Korean Air Logo
1:30 pm - 10:10 pmIAD-PNH
21h 40m1 stop
Korean Air Logo
11:30 pm - 7:18 pmPNH-IAD
54h 48m2 stops
$1,050Korean Air
Find Deal
mié., ago. 20 - mar., oct. 21
China Airlines Logo
9:59 am - 10:35 amDCA-PNH
36h 36m2 stops
China Airlines Logo
11:35 am - 8:00 pmPNH-DCA
44h 25m2 stops
$1,094China Airlines
Find Deal
mié., nov. 5 - dom., nov. 16
China Airlines Logo
8:59 am - 9:50 amDCA-PNH
37h 51m2 stops
China Airlines Logo
10:50 am - 8:59 pmPNH-DCA
45h 09m2 stops
$1,096China Airlines
Find Deal
vie., sep. 12 - vie., sep. 19
Asiana Airlines Logo
6:13 pm - 10:55 pmIAD-PNH
41h 42m2 stops
Asiana Airlines Logo
11:55 pm - 5:55 amPNH-IAD
42h 00m2 stops
$1,115Asiana Airlines
Find Deal
mar., oct. 28 - vie., dic. 12
Etihad Airways Logo
10:05 pm - 6:30 amIAD-PNH
21h 25m1 stop
Etihad Airways Logo
7:55 am - 4:05 pmPNH-IAD
44h 10m1 stop
$1,116Etihad Airways
Find Deal
sáb., oct. 25 - mar., nov. 4
Asiana Airlines Logo
9:00 am - 10:55 pmIAD-PNH
26h 55m2 stops
Asiana Airlines Logo
11:55 pm - 6:28 amPNH-IAD
42h 33m2 stops
$1,134Asiana Airlines
Find Deal
lun., ago. 25 - lun., nov. 24
Etihad Airways Logo
10:10 pm - 6:30 amIAD-PNH
21h 20m1 stop
Etihad Airways Logo
7:55 am - 4:05 pmPNH-IAD
44h 10m1 stop
$1,166Etihad Airways
Find Deal
sáb., nov. 1 - lun., nov. 10

EVA Air flights from Washington, D.C. to Phnom Penh

Our best EVA Air deals on Washington, D.C. to Phnom Penh flight tickets
EVA Air
Nov 5
IAD6:13 pmWashington, D.C. Dulles Intl
29h 12m
2 stops
PNH11:25 amPhnom Penh Pochentong
Nov 14
PNH12:45 pmPhnom Penh Pochentong
29h 38m
2 stops
IAD6:23 amWashington, D.C. Dulles Intl
$1,340
Find similar
EVA Air
Nov 5
IAD6:13 pmWashington, D.C. Dulles Intl
29h 12m
2 stops
PNH11:25 amPhnom Penh Pochentong
Nov 14
PNH12:45 pmPhnom Penh Pochentong
29h 38m
2 stops
IAD6:23 amWashington, D.C. Dulles Intl
$1,341
Find similar
EVA Air
Aug 1
IAD7:59 pmWashington, D.C. Dulles Intl
28h 16m
2 stops
PNH11:15 amPhnom Penh Pochentong
Sep 30
PNH12:35 pmPhnom Penh Pochentong
29h 58m
2 stops
IAD7:33 amWashington, D.C. Dulles Intl
$1,342
Find similar

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

Our best Etihad Airways deals on Washington, D.C. 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
44h 10m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$1,116
Find similar
Etihad Airways
Nov 1
IAD10:10 pmWashington, D.C. Dulles Intl
21h 20m
1 stop
PNH6:30 amPhnom Penh Pochentong
Nov 10
PNH7:55 amPhnom Penh Pochentong
44h 10m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$1,166
Find similar
Etihad Airways
Nov 5
IAD9:10 pmWashington, D.C. Dulles Intl
21h 20m
1 stop
PNH6:30 amPhnom Penh Pochentong
Nov 14
PNH7:55 amPhnom Penh Pochentong
44h 10m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$1,344
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 julio 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. 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

vie. 10/24

11:00 pm-11:10 pm

1 stop37h 10m

Phnom Penh Pochentong

jue. 11/6

12:25 am-6:30 pm

1 stop30h 05m

$968

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

mar. 11/4

10:00 pm-11:10 pm

1 stop37h 10m

Phnom Penh Pochentong

jue. 11/20

12:25 am-6:30 pm

1 stop30h 05m

$990

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

lun. 8/25

8:35 am-10:10 pm

2 stops26h 35m

Phnom Penh Pochentong

dom. 11/23

11:45 pm-6:05 pm

2 stops30h 20m

$1,050

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

mié. 8/20

1:30 pm-10:10 pm

1 stop21h 40m

Phnom Penh Pochentong

mar. 10/21

11:30 pm-7:18 pm

2 stops54h 48m

$1,050

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

mié. 11/5

9:59 am-10:35 am

2 stops36h 36m

Phnom Penh Pochentong

dom. 11/16

11:35 am-8:00 pm

2 stops44h 25m

$1,094

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

vie. 9/12

8:59 am-9:50 am

2 stops37h 51m

Phnom Penh Pochentong

vie. 9/19

10:50 am-8:59 pm

2 stops45h 09m

$1,096

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

mar. 10/28

6:13 pm-10:55 pm

2 stops41h 42m

Phnom Penh Pochentong

vie. 12/12

11:55 pm-5:55 am

2 stops42h 00m

$1,115

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

sáb. 10/25

10:05 pm-6:30 am

1 stop21h 25m

Phnom Penh Pochentong

mar. 11/4

7:55 am-4:05 pm

1 stop44h 10m

$1,116

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

lun. 8/25

9:00 am-10:55 pm

2 stops26h 55m

Phnom Penh Pochentong

lun. 11/24

11:55 pm-6:28 am

2 stops42h 33m

$1,134

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

sáb. 11/1

10:10 pm-6:30 am

1 stop21h 20m

Phnom Penh Pochentong

lun. 11/10

7:55 am-4:05 pm

1 stop44h 10m

$1,166

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

See travel insights to Phnom Penh from

How to get the cheapest flight ticket from Washington, D.C. 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. and Phnom Penh?

What is the cheapest month to fly to Phnom Penh?

In general, August is the cheapest month to fly from Washington, D.C. to Phnom Penh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,299. If you aren’t able to travel to Phnom Penh during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,325.

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

The cheapest day to depart from Washington, D.C. 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. 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. 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.

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

You could potentially save up to 16% on your flight if you consider stops on a Washington, D.C. to Phnom Penh flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Phnom Penh (WAS to PNH) flight deals and tips

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

Best Price Found

$6,292

Fastest flight time

21h 20m

Direct flights

None

Airports in Phnom Penh

1 airport
The best one-way flight to Phnom Penh from Washington, D.C. in the past 72 hours is $6,292. The best round-trip flight deal from Washington, D.C. to Phnom Penh found on momondo in the last 72 hours is $968.
The fastest flight from Washington, D.C. to Phnom Penh takes 21h 20m
There are no direct flights from Washington, D.C. to Phnom Penh. Popular non-direct routes for this connection are Baltimore/Washington Airport - Phnom Penh Pochentong Airport, Washington, D.C. Dulles Intl Airport - Phnom Penh Pochentong Airport and Washington, D.C. Reagan-National Airport - Phnom Penh Pochentong Airport.
There is 1 airport near Phnom Penh: Phnom Penh Pochentong (PNH)
Search flight deals

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

    The distance between Washington, D.C. and Phnom Penh Pochentong is about 8941.3 mi. 21h 20m is a normal flight duration for this route.

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

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

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Etihad AirwaysPriceFrom $1,048Free CancellationRating
7.4
1,230 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,299Free CancellationRating
7.4
3,607 reviews
Search Qatar Airways flights
Korean AirPriceFrom $1,302Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights
Singapore AirlinesPriceFrom $1,311Free CancellationRating
8.1
1,338 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom $1,334Free CancellationRating
7.4
270 reviews
Search Malaysia Airlines flights
Asiana AirlinesPriceFrom $1,415Free CancellationRating
8.2
467 reviews
Search Asiana Airlines flights

Why use momondo?

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

Finding the right flight to Phnom Penh from Washington, D.C. 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 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?

momondo helps you find the best flight between Washington, D.C. and Phnom Penh 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 Phnom Penh right now. Can momondo alert me if prices change?

Price alerts on flights to Phnom Penh from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Phnom Penh 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
lun. 8/4
lun. 8/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia