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$629+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PNH
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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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 Friday or Saturday and return on a Wednesday

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 November 21, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

December

Cheapest in

September

Round-trip from

$1,134
(Expedia)

One-way from

$629
(Kiwi.com)
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
High demand for flights, 18% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals
From Washington, D.C. (WAS) to Phnom Penh Pochentong
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One-way flight from Washington, D.C. (WAS) to Phnom Penh Pochentong
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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 November 21, 2024.

This Cathay Pacific deal was found by Cheapflights users on 11/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/281:59 pmDCA - PNH
2 stops39h 46mMultiple Airlines
Thu 12/511:45 amPNH - DCA
2 stops40h 42mMultiple Airlines
Deal found 11/21$1,357
This EVA Air deal was found by Cheapflights users on 11/21. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/286:30 pmBWI - PNH
2 stops28h 55mMultiple Airlines
Thu 12/512:45 pmPNH - BWI
2 stops28h 45mMultiple Airlines
Deal found 11/21$1,515
This Expedia deal was found by Cheapflights users on 11/21. 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.
Tue 12/109:30 pmIAD - PNH
2 stops32h 00mMultiple Airlines
Thu 12/193:20 pmPNH - IAD
2 stops37h 05mMultiple Airlines
Deal found 11/21$1,526
This Qatar Airways deal was found by Cheapflights users on 11/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/288:05 pmIAD - PNH
2 stops31h 20mQatar Airways
Thu 12/511:10 amPNH - IAD
2 stops33h 10mQatar Airways
Deal found 11/21$1,966
This KAYAK deal was found by Cheapflights users on 11/21. 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.
Tue 12/317:40 amDCA - PNH
2 stops26h 45mKorean Air
Mon 1/1311:45 pmPNH - DCA
2 stops30h 15mKorean Air
Deal found 11/21$1,981
This Korean Air deal was found by Cheapflights users on 11/21. 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.
Thu 11/2811:50 amIAD - PNH
1 stop22h 35mKorean Air
Thu 12/511:45 pmPNH - IAD
1 stop22h 05mKorean Air
Deal found 11/21$2,083
This FlightHub deal was found by Cheapflights users on 11/21. 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 12/315:55 pmIAD - PNH
2 stops41h 25mAsiana Airlines
Sun 1/1212:30 amPNH - IAD
2 stops35h 59mAsiana Airlines
Deal found 11/21$2,086
This Ovago deal was found by Cheapflights users on 11/21. 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 12/104:35 pmIAD - PNH
2 stops42h 35mAir China
Wed 12/1812:25 amPNH - IAD
2 stops41h 02mAir China
Deal found 11/21$2,227
This Emirates deal was found by Cheapflights users on 11/21. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2812:48 pmBWI - PNH
3 stops41h 37mEmirates
Thu 12/59:30 pmPNH - BWI
3 stops35h 24mEmirates
Deal found 11/21$2,439
This KAYAK deal was found by Cheapflights users on 11/21. 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.
Tue 12/3112:15 pmBWI - PNH
3 stops39h 10mQatar Airways
Mon 1/135:10 pmPNH - BWI
3 stops39h 53mQatar Airways
Deal found 11/21$2,512
This oojo deal was found by Cheapflights users on 11/21. 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 12/311:33 pmDCA - PNH
3 stops37h 52mQatar Airways
Mon 1/135:10 pmPNH - DCA
3 stops41h 31mQatar Airways
Deal found 11/21$2,707
This FlightHub deal was found by Cheapflights users on 11/21. 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.
Sun 12/159:00 amDCA - PNH
2 stops39h 45mSingapore Airlines
Tue 12/246:45 pmPNH - DCA
3 stops38h 14mSingapore Airlines
Deal found 11/21$2,748

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 2/6

9:30 pm-8:45 am

2 stops47h 15m

Phnom Penh Pochentong

Sat 2/22

6:30 pm-4:25 pm

2 stops57h 55m

$1,232

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Tue 3/18

6:35 am-8:35 am

3 stops39h 00m

Phnom Penh Pochentong

Tue 5/27

9:25 am-4:47 pm

2 stops42h 22m

$1,296

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 3/18

12:30 pm-10:25 am

2 stops34h 55m

Phnom Penh Pochentong

Tue 5/27

11:25 am-9:25 pm

2 stops45h 00m

$1,315

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Thu 1/9

11:07 am-10:25 am

3 stops35h 18m

Phnom Penh Pochentong

Tue 1/28

2:00 pm-10:02 pm

3 stops44h 02m

$1,326

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 1/9

5:32 pm-11:25 am

2 stops29h 53m

Phnom Penh Pochentong

Tue 1/28

12:45 pm-8:59 pm

2 stops44h 14m

$1,371

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Thu 1/30

8:05 pm-5:30 pm

2 stops33h 25m

Phnom Penh Pochentong

Mon 2/3

6:30 pm-3:55 pm

2 stops33h 25m

$1,419

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Tue 4/1

1:05 pm-4:00 pm

3 stops39h 55m

Phnom Penh Pochentong

Wed 4/30

5:40 pm-9:29 pm

3 stops38h 49m

$1,492

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 2/4

11:50 am-10:25 pm

1 stop22h 35m

Phnom Penh Pochentong

Sun 3/2

11:45 pm-9:50 am

1 stop22h 05m

$1,582

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 3/18

9:00 am-8:35 am

3 stops36h 35m

Phnom Penh Pochentong

Tue 5/27

6:25 pm-8:55 pm

2 stops61h 30m

$1,655

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 2/4

10:30 am-6:25 pm

2 stops43h 55m

Phnom Penh Pochentong

Sun 3/2

9:30 pm-9:09 pm

3 stops35h 39m

$1,805

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 30 results
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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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Phnom Penh flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 November 15, 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 $1,012). Flying from Washington, D.C. to Phnom Penh in June is currently the most expensive (average of $1,583). 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 November 21, 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 November 18, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Phnom Penh flight should consider departing on Wednesday 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 November 21, 2024.
To help decide which airline to fly from Washington, D.C. to Phnom Penh, see what other customers have to say about Singapore Airlines, Korean Air and Qatar Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

Korean Air
8.5
Very good
1,024 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

Asiana Airlines
8.3
Very good
476 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

China Airlines
8.3
Very good
776 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

Emirates
8.1
Very good
3,489 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

Singapore Airlines
8.1
Very good
1,338 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

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 $1,296. Other airlines that can offer you cheap pricing are Cathay Pacific, from $1,315, and Korean Air, from $1,403. You may be able to fly from Washington, D.C. to Phnom Penh for 18% 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 $710. However, be on the lookout for offers from Cathay Pacific and Singapore Airlines, 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 $1,012). Flying from Washington, D.C. to Phnom Penh in June is currently the most expensive (average of $1,583). 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 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,044Average$1,121FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,293Average$1,481FlexibilityNo cancel feeOn-time68%
Korean AirCheapest$1,360Average$1,684FlexibilityNo cancel feeOn-time81%
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