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Phnom Penh

$807+ Cheap flights from District of Columbia to Phnom Penh (PNH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PNH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from District of Columbia to Phnom Penh

Keep the following information in mind while searching for District of Columbia to Phnom Penh flight deals. Data was last updated September 11, 2025.

Round-trip from

$1,225
(Gotogate)

One-way from

$807
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,325
From District of Columbia to Phnom Penh Pochentong
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One-way flight from District of Columbia to Phnom Penh Pochentong
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Highest demand for flights based on searches. 10% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from District of Columbia to Phnom Penh

Cheapest flights from District of Columbia to Phnom Penh
Explore the most affordable flight options available from District of Columbia to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:10 pmIAD - PNH
1 stop33h 15mEtihad Airways
Fri 1/307:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/9$1,225
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1810:05 pmIAD - PNH
1 stop21h 50mEtihad Airways
Sat 11/17:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/10$1,244
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:05 pmIAD - PNH
1 stop21h 50mEtihad Airways
Tue 10/148:30 amPNH - IAD
1 stop42h 40mEtihad Airways
Deal found 9/10$1,437
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2510:05 pmIAD - PNH
1 stop21h 25mEtihad Airways
Tue 11/47:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/10$1,443
This Etihad Airways deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:10 pmIAD - PNH
1 stop33h 15mEtihad Airways
Mon 11/177:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/10$1,537
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2510:05 pmIAD - PNH
1 stop21h 25mEtihad Airways
Sat 11/17:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/10$1,539
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/712:00 pmIAD - PNH
2 stops31h 55mMultiple Airlines
Tue 10/148:30 amPNH - IAD
3 stops35h 10mMultiple Airlines
Deal found 9/10$1,660
This Etihad Airways deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:10 pmIAD - PNH
1 stop21h 20mEtihad Airways
Tue 11/187:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Deal found 9/10$1,668
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:40 amDCA - PNH
3 stops34h 15mMultiple Airlines
Tue 10/148:30 amPNH - DCA
3 stops35h 29mMultiple Airlines
Deal found 9/10$2,601
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:35 pmDCA - PNH
3 stops26h 55mMultiple Airlines
Sat 11/17:50 pmPNH - DCA
2 stops35h 55mMultiple Airlines
Deal found 9/10$3,018
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:50 pmDCA - PNH
3 stops35h 35mMultiple Airlines
Fri 11/287:55 amPNH - DCA
3 stops47h 50mMultiple Airlines
Deal found 9/9$4,066

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from District of Columbia to Phnom Penh that are best for you.

Fly from

District of Columbia

Fly to

Phnom Penh

Route

Depart

Return

Price

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

$1,343

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 11/4

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Mon 11/17

7:55 am-3:50 pm

1 stop43h 55m

$1,537

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sun 11/2

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Tue 11/18

7:55 am-3:50 pm

1 stop43h 55m

$1,537

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

$1,541

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 10/7

12:00 pm-6:55 am

3 stops31h 55m

Phnom Penh Pochentong

Tue 10/14

8:30 am-8:40 am

3 stops35h 10m

$1,667

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 10/30

10:10 pm-6:30 am

1 stop21h 20m

Phnom Penh Pochentong

Mon 11/17

7:55 am-3:50 pm

1 stop43h 55m

$1,668

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 10/30

10:10 pm-6:30 am

1 stop21h 20m

Phnom Penh Pochentong

Tue 11/18

7:55 am-3:50 pm

1 stop43h 55m

$1,668

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sun 11/2

9:10 pm-6:25 pm

1 stop33h 15m

Phnom Penh Pochentong

Thu 11/20

7:50 pm-3:50 pm

1 stop32h 00m

$1,756

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Wed 11/12

9:10 pm-6:30 am

1 stop21h 20m

Phnom Penh Pochentong

Tue 2/17

7:50 pm-3:50 pm

1 stop32h 00m

$1,806

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 31 results
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Best time to book a flight from District of Columbia to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Phnom Penh

What is the cheapest month to book a flight from District of Columbia to Phnom Penh?

Currently, March is the cheapest month in which you can book a flight from District of Columbia to Phnom Penh (average of $983). Flying from District of Columbia to Phnom Penh in June is currently the most expensive (average of $1,553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to PNH?

Find hourly flight availability from District of Columbia to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Phnom Penh as you normally would.

How much does it cost to fly round-trip from District of Columbia to Phnom Penh?

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Phnom Penh from District of Columbia?

    Most people fly into Phnom Penh Pochentong (PNH) if they book a flight to Phnom Penh from District of Columbia. Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

  • How long is the flight from District of Columbia to Phnom Penh?

    Etihad Airways can get you from District of Columbia to Phnom Penh in just under 33h 15m. Your travel time can differ by up to . Airlines will cover a distance of 8939 mi.

  • Can I find deals for flights from District of Columbia to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Phnom Penh.

  • Can I find deals for business class flights from District of Columbia to Phnom Penh?

    Yes. Cheapflights offers flight deals from District of Columbia to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Phnom Penh?

    Currently, March is the cheapest month in which you can book a flight from District of Columbia to Phnom Penh (average of $983). Flying from District of Columbia to Phnom Penh in June is currently the most expensive (average of $1,553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for District of Columbia to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Phnom Penh flights
Boston to Phnom Penh flights
Dulles Intl to Phnom Penh flights
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John F Kennedy Intl to Krong Preah Sihanouk flights
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Top 6 airlines flying from District of Columbia to Phnom Penh

Discover the top 6 airlines that operate flights from District of Columbia to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$999Average$1,348FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,299Average$1,560FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$1,301Average$1,716FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$1,311Average$1,405FlexibilityNo cancel feeOn-time81%
Malaysia AirlinesCheapest$1,334Average$1,382FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$1,415Average$1,415FlexibilityNo cancel feeOn-time76%

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