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Cheap flights from District of Columbia to Phnom Penh from $498

This is the cheapest one-way 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 8/25. 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

Cathay Pacific Logo
12:35 pm - 10:15 amDCA-PNH
34h 40m2 stops
Cathay Pacific Logo
6:30 pm - 4:22 pmPNH-DCA
32h 52m2 stops
$966Cathay Pacific
Find Deal
Mon, Sep 1 - Fri, Sep 5
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
Fri, Oct 24 - Thu, Nov 6
Asiana Airlines Logo
9:59 am - 10:55 pmDCA-PNH
48h 56m2 stops
Asiana Airlines Logo
11:55 pm - 8:00 pmPNH-DCA
56h 05m2 stops
$1,015Asiana Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 16
Asiana Airlines Logo
9:59 am - 10:55 pmDCA-PNH
48h 56m2 stops
Asiana Airlines Logo
11:55 pm - 8:00 pmPNH-DCA
56h 05m2 stops
$1,028Asiana Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 16
Korean Air Logo
1:15 pm - 10:10 pmIAD-PNH
21h 55m1 stop
Korean Air Logo
11:30 pm - 10:55 amPNH-IAD
22h 25m1 stop
$1,033Korean Air
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Fri, Sep 5 - Sun, Oct 5
Logo
3:00 pm - 8:40 amIAD-PNH
30h 40m2 stops
Logo
2:05 pm - 2:44 pmPNH-IAD
35h 39m2 stops
$1,040
Find Deal
Sat, Sep 13 - Mon, Oct 6
Korean Air Logo
8:25 am - 10:10 pmDCA-PNH
26h 45m2 stops
Korean Air Logo
11:30 pm - 4:05 pmPNH-DCA
27h 35m2 stops
$1,050Korean Air
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Fri, Sep 19 - Fri, Sep 26
Logo
8:59 am - 10:10 pmDCA-PNH
50h 11m2 stops
Logo
11:30 pm - 9:14 pmPNH-DCA
32h 44m2 stops
$1,057
Find Deal
Sat, Sep 13 - Mon, Oct 6
Singapore Airlines Logo
8:59 am - 1:10 pmDCA-PNH
41h 11m2 stops
Singapore Airlines Logo
6:55 pm - 9:59 pmPNH-DCA
38h 04m2 stops
$1,196Singapore Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 13
Singapore Airlines Logo
8:59 am - 1:10 pmDCA-PNH
41h 11m3 stops
Singapore Airlines Logo
9:35 am - 8:59 pmPNH-DCA
46h 24m2 stops
$1,317Singapore Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9

Turkish Airlines flights from District of Columbia to Phnom Penh

Our best Turkish Airlines deals on District of Columbia to Phnom Penh flight tickets
Turkish Airlines
Jan 1
IAD9:10 pmWashington, D.C. Dulles Intl
29h 30m
2 stops
PNH2:40 pmPhnom Penh Pochentong
Jan 29
PNH7:15 pmPhnom Penh Pochentong
28h 30m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
$1,252
Find similar
Turkish Airlines
Dec 9
IAD9:10 pmWashington, D.C. Dulles Intl
29h 30m
2 stops
PNH2:40 pmPhnom Penh Pochentong
Jan 31
PNH7:15 pmPhnom Penh Pochentong
28h 30m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
$1,434
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Air China flights from District of Columbia to Phnom Penh

Our best Air China deals on District of Columbia to Phnom Penh flight tickets
Air China
Oct 24
IAD11:00 pmWashington, D.C. Dulles Intl
37h 10m
1 stop
PNH11:10 pmPhnom Penh Pochentong
Nov 6
PNH12:25 amPhnom Penh Pochentong
30h 05m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$968
Find similar
Air China
Sep 19
IAD11:00 pmWashington, D.C. Dulles Intl
37h 05m
1 stop
PNH11:05 pmPhnom Penh Pochentong
Sep 25
PNH12:20 amPhnom Penh Pochentong
30h 10m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$1,015
Find similar
Air China
Nov 5
IAD10:08 pmWashington, D.C. Dulles Intl
61h 02m
2 stops
PNH11:10 pmPhnom Penh Pochentong
Nov 13
PNH12:25 amPhnom Penh Pochentong
30h 05m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,361
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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 August 7, 2025.
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

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 9/1

12:35 pm-10:15 am

2 stops34h 40m

Phnom Penh Pochentong

Fri 9/5

6:30 pm-4:22 pm

2 stops32h 52m

$966

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Fri 10/24

11:00 pm-11:10 pm

1 stop37h 10m

Phnom Penh Pochentong

Thu 11/6

12:25 am-6:30 pm

1 stop30h 05m

$968

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Wed 11/5

9:59 am-10:55 pm

2 stops48h 56m

Phnom Penh Pochentong

Sun 11/16

11:55 pm-8:00 pm

2 stops56h 05m

$1,015

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Wed 11/5

9:59 am-10:55 pm

2 stops48h 56m

Phnom Penh Pochentong

Sun 11/16

11:55 pm-8:00 pm

2 stops56h 05m

$1,028

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Fri 9/5

1:15 pm-10:10 pm

1 stop21h 55m

Phnom Penh Pochentong

Sun 10/5

11:30 pm-10:55 am

1 stop22h 25m

$1,033

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sat 9/13

3:00 pm-8:40 am

2 stops30h 40m

Phnom Penh Pochentong

Mon 10/6

2:05 pm-2:44 pm

2 stops35h 39m

$1,040

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Fri 9/19

8:25 am-10:10 pm

2 stops26h 45m

Phnom Penh Pochentong

Fri 9/26

11:30 pm-4:05 pm

2 stops27h 35m

$1,050

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 9/13

8:59 am-10:10 pm

2 stops50h 11m

Phnom Penh Pochentong

Mon 10/6

11:30 pm-9:14 pm

2 stops32h 44m

$1,057

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Wed 10/1

8:59 am-1:10 pm

2 stops41h 11m

Phnom Penh Pochentong

Mon 10/13

6:55 pm-9:59 pm

2 stops38h 04m

$1,196

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 9/2

8:59 am-1:10 pm

3 stops41h 11m

Phnom Penh Pochentong

Tue 9/9

9:35 am-8:59 pm

2 stops46h 24m

$1,317

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest month to fly to Phnom Penh?

In general, August is the cheapest month to fly from District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia to Phnom Penh flights?

You could potentially save up to 16% 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

Best Price Found

$498

Fastest flight time

21h 20m

Direct flights

None

Airports in Phnom Penh

1 airport
The best one-way flight to Phnom Penh from District of Columbia in the past 72 hours is $498. The best round-trip flight deal from District of Columbia to Phnom Penh found on momondo in the last 72 hours is $966.
The fastest flight from District of Columbia to Phnom Penh takes 21h 20m
There are no direct flights from District of Columbia to Phnom Penh. Popular non-direct routes for this connection are 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)
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  • 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
Etihad AirwaysPriceFrom $1,048Free CancellationRating
7.4
1,232 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,299Free CancellationRating
7.4
3,608 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
1,344 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom $1,334Free CancellationRating
7.4
274 reviews
Search Malaysia Airlines flights
Asiana AirlinesPriceFrom $1,415Free CancellationRating
8.2
470 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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