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 $1,195. Other airlines that can offer you cheap pricing are Korean Air, from $1,268, and Etihad Airways, from $1,372. You may be able to fly from Washington, D.C. to Phnom Penh for 28% 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 Delta, with whom users have recently found tickets for as low as $1,129. However, be on the lookout for offers from Qatar Airways and Air China, as they are both options that can get you from Washington, D.C. to Phnom Penh for a low price.

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

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.

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, Baltimore/Washington - Phnom Penh Pochentong or Washington, D.C. Reagan-National - Phnom Penh Pochentong as they are the most popular.

What are the most popular airlines that fly from Washington, D.C. to Phnom Penh?

When booking a flight from Washington, D.C. to Phnom Penh, you may want to consider flying on Etihad Airways, Korean Air or Malaysia Airlines as they are the most popular for this route.

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

Flights from Washington, D.C. to Phnom Penh are found to be more expensive on Tuesday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Phnom Penh.

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

Due to multiple factors, expect to potentially pay more when booking in May. For low rates, September can be a great choice for travel to Phnom Penh. Flights to Phnom Penh from Washington, D.C. in September are about $1,670 on average during September, but can be found for as low as $1,147.

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.

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 5 different airlines.

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.

$941+ Flights from Washington, D.C. to Phnom Penh

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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,162 (China Airlines)
One-way from	$941 (KAYAK)
Popular in	May
Cheapest in	September
Average price	$1,391

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

Highest demand for flights based on searches. 4% potential increase in price ($73 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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 April 17, 2025.

Mon 9/18:07 pmIAD - PNH

2 stops49h 33mSingapore Airlines

Mon 9/299:35 amPNH - IAD

2 stops41h 24mSingapore Airlines

Deal found 4/16

$1,090

Thu 11/135:00 pmIAD - PNH

2 stops53h 35mChina Airlines

Thu 12/45:20 pmPNH - IAD

2 stops35h 30mChina Airlines

Deal found 4/17

$1,125

Sat 10/259:25 amBWI - PNH

2 stops26h 00mKorean Air

Tue 11/411:45 pmPNH - BWI

2 stops24h 31mKorean Air

Deal found 4/17

$1,134

Mon 4/287:13 pmIAD - PNH

2 stops27h 37mMultiple Airlines

Thu 5/85:10 pmPNH - IAD

2 stops33h 50mMultiple Airlines

Deal found 4/17

$1,162

Mon 4/2811:54 amDCA - PNH

2 stops35h 21mCathay Pacific

Thu 5/811:25 amPNH - DCA

2 stops42h 42mCathay Pacific

Deal found 4/17

$1,195

Mon 4/286:00 amBWI - PNH

2 stops29h 10mMultiple Airlines

Thu 5/811:30 pmPNH - BWI

2 stops27h 53mMultiple Airlines

Deal found 4/17

$1,267

Sat 10/255:00 pmIAD - PNH

2 stops31h 25mEVA Air

Tue 11/412:45 pmPNH - IAD

2 stops40h 05mEVA Air

Deal found 4/17

$1,284

Sat 10/2510:05 pmIAD - PNH

1 stop22h 15mEtihad Airways

Tue 11/43:20 pmPNH - IAD

2 stops36h 45mEtihad Airways

Deal found 4/17

$1,316

Wed 4/309:00 pmIAD - PNH

2 stops33h 25mMalaysia Airlines

Sun 5/1111:10 amPNH - IAD

2 stops39h 30mMalaysia Airlines

Deal found 4/17

$1,391

Fri 6/201:30 pmIAD - PNH

2 stops32h 20mTurkish Airlines

Mon 7/79:40 amPNH - IAD

2 stops37h 05mTurkish Airlines

Deal found 4/17

$1,471

Sat 10/257:28 pmBWI - PNH

2 stops50h 07mSingapore Airlines

Tue 11/47:45 pmPNH - BWI

3 stops57h 02mSingapore Airlines

Deal found 4/17

$1,551

Sat 10/2512:58 pmBWI - PNH

3 stops39h 27mQatar Airways

Tue 11/45:10 pmPNH - BWI

3 stops40h 27mQatar Airways

Deal found 4/17

$1,556

Best flights from Washington, D.C. to Phnom Penh
Discover carefully curated flight deals from Washington, D.C. to Phnom Penh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Mon 4/287:13 pmIAD - PNH

2 stops27h 37mMultiple Airlines

Thu 5/85:10 pmPNH - IAD

2 stops33h 50mMultiple Airlines

Deal found 4/17

$1,162

Mon 4/2811:54 amDCA - PNH

2 stops35h 21mCathay Pacific

Thu 5/811:25 amPNH - DCA

2 stops42h 42mCathay Pacific

Deal found 4/17

$1,195

Fri 4/256:00 amBWI - PNH

2 stops29h 10mKorean Air

Wed 5/711:30 pmPNH - BWI

2 stops27h 53mKorean Air

Deal found 4/17

$1,268

Fri 4/2510:05 pmIAD - PNH

2 stops47h 30mEtihad Airways

Sun 5/117:25 pmPNH - IAD

2 stops31h 45mEtihad Airways

Deal found 4/17

$1,372

Wed 4/309:00 pmIAD - PNH

2 stops33h 25mMalaysia Airlines

Sun 5/1111:10 amPNH - IAD

2 stops39h 30mMalaysia Airlines

Deal found 4/17

$1,391

Fri 6/201:30 pmIAD - PNH

2 stops32h 20mTurkish Airlines

Mon 7/79:40 amPNH - IAD

2 stops37h 05mTurkish Airlines

Deal found 4/17

$1,471

Mon 4/288:59 amDCA - PNH

3 stops45h 41mSingapore Airlines

Thu 5/82:05 pmPNH - DCA

2 stops41h 53mSingapore Airlines

Deal found 4/17

$1,631

Sat 6/287:59 pmIAD - PNH

2 stops33h 06mChina Airlines

Fri 8/810:50 amPNH - IAD

2 stops40h 35mChina Airlines

Deal found 4/17

$1,647

Mon 4/2810:59 amBWI - PNH

3 stops42h 16mQatar Airways

Sun 5/115:40 pmPNH - BWI

3 stops39h 25mQatar Airways

Deal found 4/17

$1,703

Sat 5/246:38 pmDCA - PNH

2 stops29h 37mEVA Air

Sat 6/712:35 pmPNH - DCA

2 stops43h 24mEVA Air

Deal found 4/17

$1,896

Mon 4/285:00 pmDCA - PNH

3 stops36h 35mEmirates

Wed 5/78:50 pmPNH - DCA

3 stops38h 09mEmirates

Deal found 4/17

$1,968

Fri 4/258:30 amDCA - PNH

3 stops51h 25mUnited Airlines

Sun 5/1111:55 pmPNH - DCA

2 stops32h 39mUnited Airlines

Deal found 4/17

$2,009

Last-minute flights from Washington, D.C. to Phnom Penh
Discover last-minute flight deals from Washington, D.C. to Phnom Penh. Data last updated April 17, 2025 and is based on user searches.

Fri 4/256:00 amBWI - PNH

2 stops29h 10mKorean Air

Wed 5/711:30 pmPNH - BWI

2 stops27h 53mKorean Air

Deal found 4/17

$1,268

Fri 4/2510:05 pmIAD - PNH

2 stops47h 30mEtihad Airways

Sat 5/107:25 pmPNH - IAD

2 stops55h 45mEtihad Airways

Deal found 4/17

$1,372

Fri 4/256:59 pmIAD - PNH

2 stops55h 11mSingapore Airlines

Sat 5/102:05 pmPNH - IAD

3 stops60h 55mSingapore Airlines

Deal found 4/17

$1,779

Fri 4/258:30 amDCA - PNH

3 stops51h 25mUnited Airlines

Sun 5/1111:55 pmPNH - DCA

2 stops32h 39mUnited Airlines

Deal found 4/17

$2,009

Fri 4/259:20 pmBWI - PNH

2 stops49h 40mBritish Airways

Wed 5/75:40 pmPNH - BWI

3 stops36h 55mBritish Airways

Deal found 4/17

$7,917

Fri 4/2510:05 pmIAD - PNH

2 stops47h 30mEtihad Airways

Sun 5/117:25 pmPNH - IAD

2 stops31h 45mEtihad Airways

Deal found 4/17

$1,372

Sat 4/266:59 pmDCA - PNH

2 stops28h 16mCathay Pacific

Thu 5/811:25 amPNH - DCA

2 stops42h 42mCathay Pacific

Deal found 4/17

$1,229

Sat 4/2611:45 amBWI - PNH

3 stops41h 30mQatar Airways

Sun 5/115:40 pmPNH - BWI

3 stops39h 25mQatar Airways

Deal found 4/17

$1,926

Sat 4/265:50 pmDCA - PNH

3 stops35h 25mQatar Airways

Thu 5/85:40 pmPNH - DCA

3 stops36h 11mQatar Airways

Deal found 4/17

$2,017

Sat 4/265:00 pmDCA - PNH

3 stops36h 35mEmirates

Wed 5/78:50 pmPNH - DCA

3 stops38h 09mEmirates

Deal found 4/17

$2,018

Sun 4/279:00 pmIAD - PNH

2 stops33h 25mMalaysia Airlines

Tue 5/611:10 amPNH - IAD

2 stops32h 30mMalaysia Airlines

Deal found 4/17

$1,391

Sun 4/271:15 pmIAD - PNH

1 stop21h 55mKorean Air

Wed 5/711:30 pmPNH - IAD

1 stop22h 45mKorean Air

Deal found 4/17

$2,083

One-way flights from Washington, D.C. to Phnom Penh
Search for one-way flight options from Washington, D.C. to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Sat 5/248:09 amBWI - PNH

3 stops45h 06mMultiple Airlines

Deal found 4/17

$941

Thu 5/227:15 amIAD - PNH

2 stops40h 00mMultiple Airlines

Deal found 4/17

$978

Sat 5/246:38 pmDCA - PNH

2 stops29h 37mMultiple Airlines

Deal found 4/17

$1,048

Thu 5/229:00 amBWI - PNH

2 stops26h 10mDelta

Deal found 4/17

$1,129

Thu 5/226:35 amDCA - PNH

3 stops46h 40mQatar Airways

Deal found 4/17

$1,351

Fri 5/2311:00 pmIAD - PNH

1 stop37h 05mAir China

Deal found 4/17

$1,674

Thu 5/225:07 pmIAD - PNH

3 stops36h 08mQatar Airways

Deal found 4/17

$1,703

Thu 5/221:15 pmIAD - PNH

1 stop21h 55mKorean Air

Deal found 4/17

$1,886

Sat 5/241:15 pmIAD - PNH

1 stop21h 55mDelta

Deal found 4/17

$2,509

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Phnom Penh that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Mon 4/28

7:13 pm-9:50 am

2 stops27h 37m

Phnom Penh Pochentong

Thu 5/8

5:10 pm-4:00 pm

2 stops33h 50m

$1,162

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 4/28

11:54 am-10:15 am

2 stops35h 21m

Phnom Penh Pochentong

Thu 5/8

11:25 am-7:07 pm

2 stops42h 42m

$1,195

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Mon 4/28

6:00 am-10:10 pm

2 stops29h 10m

Phnom Penh Pochentong

Thu 5/8

11:30 pm-4:23 pm

2 stops27h 53m

$1,267

BaltimorePhnom Penh

BWI - PNH

BWIPNH

Baltimore/Washington

Fri 4/25

7:50 pm-10:10 pm

2 stops39h 20m

Phnom Penh Pochentong

Sat 5/10

11:30 pm-10:45 pm

2 stops34h 15m

$1,268

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Fri 4/25

10:05 pm-8:35 am

2 stops47h 30m

Phnom Penh Pochentong

Sat 5/10

7:25 pm-4:10 pm

2 stops55h 45m

$1,372

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Wed 4/30

9:00 pm-5:25 pm

2 stops33h 25m

Phnom Penh Pochentong

Sun 5/11

11:10 am-3:40 pm

2 stops39h 30m

$1,391

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Fri 6/20

1:30 pm-8:50 am

2 stops32h 20m

Phnom Penh Pochentong

Mon 7/7

9:40 am-11:45 am

2 stops37h 05m

$1,471

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 4/28

8:59 am-5:40 pm

3 stops45h 41m

Phnom Penh Pochentong

Thu 5/8

2:05 pm-8:58 pm

2 stops41h 53m

$1,631

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Tue 4/29

5:38 pm-8:40 am

3 stops52h 02m

Phnom Penh Pochentong

Sun 5/11

6:55 pm-4:00 pm

2 stops56h 05m

$1,645

Washington, D.C.Phnom Penh

IAD - PNH

IADPNH

Washington, D.C. Dulles Intl

Sat 6/28

7:59 pm-4:05 pm

2 stops33h 06m

Phnom Penh Pochentong

Fri 8/8

10:50 am-4:25 pm

2 stops40h 35m

$1,647

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 35 results

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

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 April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Phnom Penh

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Phnom Penh (average of $994). 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?

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.

Rainfall in Phnom Penh 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

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

To help decide which airline to fly from Washington, D.C. to Phnom Penh, see what other customers have to say about EVA Air, Korean Air and China Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

EVA Air

8.4

Very good

1,177 reviews

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Korean Air

8.4

Very good

1,064 reviews

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

China Airlines

8.2

Very good

729 reviews

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Singapore Airlines

8.1

Very good

1,288 reviews

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Emirates

8.0

Very good

3,200 reviews

EVA Air

8.4

Very good

1,177 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

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 5 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 $1,195. Other airlines that can offer you cheap pricing are Korean Air, from $1,268, and Etihad Airways, from $1,372. You may be able to fly from Washington, D.C. to Phnom Penh for 28% 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 Delta, with whom users have recently found tickets for as low as $1,129. However, be on the lookout for offers from Qatar Airways 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, Baltimore/Washington - Phnom Penh Pochentong or Washington, D.C. Reagan-National - 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Phnom Penh (average of $994). 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

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Top 5 airlines flying from Washington, D.C. to Phnom Penh

Airline	Cheapest	Average	Flexibility	On-time
Etihad Airways	Cheapest$1,048	Average$1,118	FlexibilityNo cancel fee	On-time75%
Singapore Airlines	Cheapest$1,239	Average$1,419	FlexibilityNo cancel fee	On-time81%
Qatar Airways	Cheapest$1,299	Average$1,565	FlexibilityNo cancel fee	On-time68%
Malaysia Airlines	Cheapest$1,334	Average$1,384	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$1,340	Average$1,811	FlexibilityNo cancel fee	On-time81%

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$941+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Washington, D.C. to Phnom PenhExplore 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 April 17, 2025.

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 April 17, 2025.

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

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Everything you need to know about your flight from Washington, D.C. to Phnom Penh

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

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 April 17, 2025.

Rainfall in Phnom Penh by month

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

Temperature in Phnom Penh by month

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

Reviews of airlines servicing Phnom Penh

To help decide which airline to fly from Washington, D.C. to Phnom Penh, see what other customers have to say about EVA Air, Korean Air and China Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.?

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

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

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

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

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

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Top 5 airlines flying from Washington, D.C. to Phnom Penh

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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 April 17, 2025.