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Phnom Penh

$544+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PNH
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,319
(China Airlines)

One-way from

$544
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,644
Provider with most accurate pricing for Washington, D.C. (WAS)-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Phnom Penh Pochentong flights.
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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. 1% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 22, 2025.

This China Airlines deal was found by Cheapflights users on 2/22. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/17:31 amIAD - PNH
2 stops45h 34mMultiple Airlines
Wed 4/3010:50 amPNH - IAD
2 stops40h 48mMultiple Airlines
Deal found 2/22$1,319
This oojo deal was found by Cheapflights users on 2/21. 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.
Mon 4/710:05 pmIAD - PNH
2 stops29h 20mEtihad Airways
Wed 4/307:25 pmPNH - IAD
2 stops32h 10mEtihad Airways
Deal found 2/21$1,328
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/117:55 pmIAD - PNH
2 stops49h 45mSingapore Airlines
Sun 8/316:55 pmPNH - IAD
2 stops55h 05mSingapore Airlines
Deal found 2/20$1,330
This Gurufare deal was found by Cheapflights users on 2/22. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:00 amDCA - PNH
2 stops24h 45mCathay Pacific
Tue 3/2511:45 amPNH - DCA
2 stops32h 44mCathay Pacific
Deal found 2/22$1,363
This Air Canada deal was found by Cheapflights users on 2/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/55:30 pmIAD - PNH
2 stops37h 10mAir Canada
Mon 8/116:55 pmPNH - IAD
2 stops56h 32mAir Canada
Deal found 2/21$1,472
This oojo deal was found by Cheapflights users on 2/21. 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.
Mon 4/79:00 pmIAD - PNH
2 stops26h 00mMalaysia Airlines
Wed 4/3011:10 amPNH - IAD
2 stops39h 30mMalaysia Airlines
Deal found 2/21$1,482
This FlightHub deal was found by Cheapflights users on 2/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/259:00 amDCA - PNH
3 stops42h 05mSingapore Airlines
Tue 4/152:05 pmPNH - DCA
2 stops41h 54mSingapore Airlines
Deal found 2/21$1,485
This Ovago deal was found by Cheapflights users on 2/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/185:35 pmIAD - PNH
3 stops54h 40mAir China
Tue 3/2512:15 pmPNH - IAD
2 stops30h 16mAir China
Deal found 2/22$1,494
This oojo deal was found by Cheapflights users on 2/21. 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.
Wed 3/125:35 pmDCA - PNH
2 stops43h 40mPhilippine Airlines
Tue 3/251:05 amPNH - DCA
2 stops30h 38mPhilippine Airlines
Deal found 2/21$1,505
This Expedia deal was found by Cheapflights users on 2/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:35 pmDCA - PNH
2 stops29h 40mMultiple Airlines
Sat 9/612:35 pmPNH - DCA
2 stops43h 20mMultiple Airlines
Deal found 2/21$1,581
This KAYAK deal was found by Cheapflights users on 2/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:50 pmIAD - PNH
1 stop22h 35mKorean Air
Fri 11/2111:45 pmPNH - IAD
1 stop22h 05mKorean Air
Deal found 2/21$1,660
This oojo deal was found by Cheapflights users on 2/21. 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.
Mon 4/77:31 amIAD - PNH
2 stops29h 44mPhilippine Airlines
Tue 4/291:15 amPNH - IAD
2 stops41h 28mPhilippine Airlines
Deal found 2/21$1,720

Find flights from District of Columbia to Phnom Penh within your budget

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 February 22, 2025.

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

Tue 4/1

7:31 am-4:05 pm

2 stops45h 34m

Phnom Penh Pochentong

Wed 4/30

10:50 am-4:38 pm

2 stops40h 48m

$1,319

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Mon 4/7

10:05 pm-2:25 pm

2 stops29h 20m

Phnom Penh Pochentong

Wed 4/30

7:25 pm-4:35 pm

2 stops32h 10m

$1,328

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Mon 8/11

7:55 pm-8:40 am

2 stops49h 45m

Phnom Penh Pochentong

Sun 8/31

6:55 pm-3:00 pm

2 stops55h 05m

$1,330

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 3/18

6:00 am-5:45 pm

2 stops24h 45m

Phnom Penh Pochentong

Tue 3/25

11:45 am-9:29 am

2 stops32h 44m

$1,363

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 8/5

5:30 pm-5:40 pm

2 stops37h 10m

Phnom Penh Pochentong

Mon 8/11

6:55 pm-4:27 pm

2 stops56h 32m

$1,472

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Mon 4/7

9:00 pm-10:00 am

2 stops26h 00m

Phnom Penh Pochentong

Wed 4/30

11:10 am-3:40 pm

2 stops39h 30m

$1,482

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 3/25

9:00 am-2:05 pm

3 stops42h 05m

Phnom Penh Pochentong

Tue 4/15

2:05 pm-8:59 pm

2 stops41h 54m

$1,485

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 3/18

5:35 pm-11:15 am

3 stops54h 40m

Phnom Penh Pochentong

Tue 3/25

12:15 pm-7:31 am

2 stops30h 16m

$1,494

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Wed 3/12

5:35 pm-12:15 am

2 stops43h 40m

Phnom Penh Pochentong

Tue 3/25

1:05 am-8:43 pm

2 stops30h 38m

$1,505

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 8/2

6:35 pm-11:15 am

2 stops29h 40m

Phnom Penh Pochentong

Sat 9/6

12:35 pm-8:55 pm

2 stops43h 20m

$1,581

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 30 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.

Travel insights for flights from District of Columbia to Phnom Penh

Get recent, data-driven insights about flights from District of Columbia to Phnom Penh including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from District of Columbia to Phnom Penh (average of $1,014). Flying from District of Columbia to Phnom Penh in June is currently the most expensive (average of $1,582). 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 February 22, 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.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated February 22, 2025.
To help decide which airline to fly from District of Columbia to Phnom Penh, see what other customers have to say about Korean Air, China Airlines and Emirates. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very good
1,036 reviews
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

China Airlines
8.2
Very good
726 reviews
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Emirates
8.1
Very good
3,278 reviews
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Singapore Airlines
8.1
Very good
1,297 reviews
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Cathay Pacific
7.5
Good
821 reviews
Korean Air
8.4
Very good
1,036 reviews

Food

8.1

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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.

  • What are the cheapest airlines to fly from District of Columbia to Phnom Penh one-way?

    For one-way options, check prices for Cathay Pacific. According to our data, you can fly for as low as $666. Users have also found prices from $913 and $1,025 on Philippine Airlines and Korean Air, respectively.

  • 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, October is the cheapest month in which you can book a flight from District of Columbia to Phnom Penh (average of $1,014). Flying from District of Columbia to Phnom Penh in June is currently the most expensive (average of $1,582). 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
John F Kennedy Intl to Phnom Penh flights
Boston to Phnom Penh flights
Ontario to Phnom Penh flights
Newark to Phnom Penh flights
San Francisco to Phnom Penh flights
Dallas/Fort Worth to Phnom Penh flights
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Cleveland to Phnom Penh flights
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O'Hare Intl to Krong Preah Sihanouk flights

Top 5 airlines flying from District of Columbia to Phnom Penh

Discover the top 5 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,048Average$1,114FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$1,239Average$1,386FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,299Average$1,577FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$1,342Average$1,860FlexibilityNo cancel feeOn-time81%
Malaysia AirlinesCheapest$1,371Average$1,447FlexibilityNo cancel feeOn-time67%
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