HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phnom Penh

$671+ Cheap flights from Washington, D.C. (WAS) 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PNH
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Phnom Penh with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Washington, D.C. to Phnom Penh Pochentong are usually found in September or October, booked 22 days in advance, depart on a Saturday or Friday and return on a Monday

Cheap flight deals from Washington, D.C. to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,283
(oojo)

One-way from

$671
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,938
Provider with most accurate pricing for Washington, D.C. (WAS)-Phnom Penh Pochentong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Phnom Penh Pochentong flights.
Search Deals
From Washington, D.C. (WAS) to Phnom Penh Pochentong
Search Deals
One-way flight from Washington, D.C. (WAS) to Phnom Penh Pochentong
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Best time to find cheap flights, 1% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Washington, D.C. to Phnom Penh

Cheapest flights from Washington, D.C. to Phnom Penh
Explore the most affordable flight options available from Washington, D.C. to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:30 amIAD - PNH
3 stops33h 55mMultiple Airlines
Thu 12/266:30 pmPNH - IAD
2 stops49h 40mMultiple Airlines
Deal found 12/20$2,005
This Ovago deal was found by Cheapflights users on 12/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/319:44 amDCA - PNH
2 stops36h 41mCathay Pacific
Mon 1/1311:45 amPNH - DCA
2 stops43h 12mCathay Pacific
Deal found 12/21$2,177
This oojo deal was found by Cheapflights users on 12/21. 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.
Tue 12/315:15 pmDCA - PNH
2 stops42h 05mAsiana Airlines
Sun 1/1212:30 amPNH - DCA
2 stops56h 29mAsiana Airlines
Deal found 12/21$2,334
This Korean Air deal was found by Cheapflights users on 12/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:50 amIAD - PNH
1 stop22h 35mKorean Air
Mon 1/1311:45 pmPNH - IAD
2 stops36h 37mKorean Air
Deal found 12/22$2,342
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:55 amBWI - PNH
2 stops27h 30mMultiple Airlines
Wed 12/251:10 amPNH - BWI
3 stops42h 29mMultiple Airlines
Deal found 12/20$2,399
This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:35 pmIAD - PNH
3 stops54h 40mAir China
Sun 1/1212:25 amPNH - IAD
2 stops42h 43mAir China
Deal found 12/22$2,475
This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:15 pmBWI - PNH
3 stops39h 10mQatar Airways
Mon 1/135:10 pmPNH - BWI
3 stops39h 53mQatar Airways
Deal found 12/22$2,517
This Korean Air deal was found by Cheapflights users on 12/22. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:02 amBWI - PNH
2 stops28h 23mKorean Air
Mon 1/1311:45 pmPNH - BWI
2 stops36h 11mKorean Air
Deal found 12/22$2,650
This Priceline deal was found by Cheapflights users on 12/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:00 amDCA - PNH
2 stops28h 25mMultiple Airlines
Thu 12/2611:45 amPNH - DCA
2 stops22h 55mMultiple Airlines
Deal found 12/20$2,731
This oojo deal was found by Cheapflights users on 12/21. 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.
Tue 12/316:24 pmDCA - PNH
3 stops33h 01mQatar Airways
Mon 1/135:10 pmPNH - DCA
3 stops40h 50mQatar Airways
Deal found 12/21$3,068
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:05 amBWI - PNH
2 stops29h 15mUnited Airlines
Sun 1/1212:30 amPNH - BWI
2 stops42h 32mUnited Airlines
Deal found 12/21$3,457
This Korean Air deal was found by Cheapflights users on 12/21. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/225:05 pmDCA - PNH
2 stops41h 20mKorean Air
Mon 1/611:45 pmPNH - DCA
2 stops35h 54mKorean Air
Deal found 12/21$3,545

Find flights from Washington, D.C. to Phnom Penh within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Thu 5/1

7:30 am-10:55 pm

2 stops28h 25m

Phnom Penh Pochentong

Fri 5/16

11:55 pm-5:45 am

2 stops40h 50m

$1,283

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 2/4

6:57 pm-11:20 pm

2 stops40h 23m

Phnom Penh Pochentong

Sat 3/1

12:30 am-5:32 am

2 stops41h 02m

$1,360

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 1/20

5:32 pm-10:25 am

2 stops28h 53m

Phnom Penh Pochentong

Mon 1/27

11:45 am-6:57 pm

2 stops43h 12m

$1,362

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Fri 2/14

6:00 am-11:20 pm

2 stops29h 20m

Phnom Penh Pochentong

Fri 3/14

12:25 am-3:10 pm

1 stop25h 45m

$1,373

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 5/1

12:30 pm-5:10 pm

2 stops41h 40m

Phnom Penh Pochentong

Fri 5/16

6:30 pm-9:25 pm

2 stops37h 55m

$1,380

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 2/4

8:05 pm-5:30 pm

2 stops33h 25m

Phnom Penh Pochentong

Tue 3/4

6:30 pm-3:55 pm

2 stops33h 25m

$1,424

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 2/18

4:35 pm-11:10 pm

2 stops42h 35m

Phnom Penh Pochentong

Mon 3/17

12:25 am-3:10 pm

1 stop25h 45m

$1,425

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 2/4

9:00 am-8:35 am

2 stops59h 35m

Phnom Penh Pochentong

Tue 2/25

1:45 pm-8:59 pm

3 stops43h 14m

$1,428

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Thu 5/1

2:59 pm-11:15 am

3 stops33h 16m

Phnom Penh Pochentong

Thu 5/15

1:15 am-9:02 pm

2 stops30h 47m

$1,456

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 5/1

7:00 am-1:05 pm

3 stops43h 05m

Phnom Penh Pochentong

Fri 5/16

9:35 am-6:20 am

2 stops31h 45m

$1,528

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 33 results
1
2
3
4

Compare providers for flights from Washington, D.C. to Phnom Penh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Phnom Penh in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Phnom Penh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Phnom Penh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Phnom Penh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Washington, D.C. 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 Washington, D.C. to Phnom Penh

Get recent, data-driven insights about flights from Washington, D.C. to Phnom Penh including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Phnom Penh?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Phnom Penh. Price data was last updated on December 20, 2024.

The best time to book flights from Washington, D.C. to Phnom Penh is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Phnom Penh?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Phnom Penh (average of $1,014). Flying from Washington, D.C. 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 WAS to PNH?

Find hourly flight availability from Washington, D.C. 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 December 22, 2024.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Phnom Penh in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Washington, D.C. to Phnom Penh?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Phnom Penh. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Phnom Penh flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 22, 2024.
To help decide which airline to fly from Washington, D.C. to Phnom Penh, see what other customers have to say about Qatar Airways, Cathay Pacific and Asiana Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.4
Very good
1,025 reviews
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
474 reviews
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,398 reviews
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,331 reviews
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Qatar Airways
7.5
Good
3,789 reviews
Korean Air
8.4
Very good
1,025 reviews

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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 Washington, D.C.?

    If you book a flight to Phnom Penh from Washington, D.C., you will be flying to Pochentong, which is the city’s only airport. Phnom Penh Pochentong (PNH) is located 5.0 mi from the center of Phnom Penh. There are 0 flights from Washington, D.C. to Pochentong per day from 3 different airlines.

  • What are the cheapest airlines flying from Washington, D.C. to Phnom Penh round-trip?

    Cheapflights users have booked flights from Washington, D.C. to Phnom Penh round-trip from $1,283. Other airlines that can offer you cheap pricing are Singapore Airlines, from $1,364, and Etihad Airways, from $1,370. You may be able to fly from Washington, D.C. to Phnom Penh for 20% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Phnom Penh one-way?

    The cheapest airline one-way is Asiana Airlines, with whom users have recently found tickets for as low as $738. However, be on the lookout for offers from Korean Air and Air China, as they are both options that can get you from Washington, D.C. to Phnom Penh for a low price.

  • What are the most popular routes from Washington, D.C. to Phnom Penh?

    When deciding which route to take from Washington, D.C. to Phnom Penh consider Washington, D.C. Dulles Intl - Phnom Penh Pochentong, Washington, D.C. Reagan-National - Phnom Penh Pochentong or Baltimore/Washington - Phnom Penh Pochentong as they are the most popular.

  • Can I find deals for flights from Washington, D.C. to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Phnom Penh?

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

  • Can I find deals for business class flights from Washington, D.C. to Phnom Penh?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Phnom Penh?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Phnom Penh (average of $1,014). Flying from Washington, D.C. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Phnom Penh flights
Reagan-National to Phnom Penh flights

Top 3 airlines flying from Washington, D.C. to Phnom Penh

Discover the top 3 airlines that operate flights from Washington, D.C. 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,048Average$1,119FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,293Average$1,481FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$1,361Average$1,844FlexibilityNo cancel feeOn-time81%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.