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

Our cheapest airline available from Washington, D.C. Reagan-National Airport to Phnom Penh is China Airlines. Our recent data shows that you can find tickets from as low as $1,096 on this airline. Additional options worth looking into are Asiana Airlines and Philippine Airlines, starting at $1,135 and $1,515 round-trip.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Phnom Penh (average of $988). Flying from Washington, D.C. Reagan-National Airport to Phnom Penh in June is currently the most expensive (average of $1,549). 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 day to fly from Washington, D.C. Reagan-National Airport to Phnom Penh?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Phnom Penh flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

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

August is one of the best times of the year to fly to Phnom Penh from Washington, D.C. Reagan-National Airport. Prices for August average $1,570 per person but you can even find prices for as low as $1,156. The most expensive prices can be found in the month of December. Opting for a August flight can save you 22% on your journey compared to booking in December

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Phnom Penh as you normally would.

What airport do you fly into for flights to Phnom Penh from Washington, D.C. Reagan-National?

Phnom Penh Pochentong (PNH), located 5.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Phnom Penh. 1 airline have flights to Pochentong from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Phnom Penh Pochentong should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.

Can I find deals for flights from Reagan-National to Phnom Penh that include hotel bookings?

Yes. In addition to deals on Reagan-National to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Phnom Penh?

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

Can I find deals for business class flights from Reagan-National to Phnom Penh?

Yes. Cheapflights offers flight deals from Reagan-National 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.

$570+ Flights from Washington, D.C. Reagan-National Airport to Phnom Penh

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Cheap flight deals from Reagan-National to Phnom Penh

Round-trip from	$1,096 (oojo)
One-way from	$570 (FlightHub)
Popular in	December
Cheapest in	August
Average price	$1,544

From Washington, D.C. Reagan-National to Phnom Penh Pochentong

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One-way flight from Washington, D.C. Reagan-National to Phnom Penh Pochentong

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Highest demand for flights based on searches. 5% potential increase in price ($87 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Reagan-National to Phnom Penh

Cheapest flights from Reagan-National to Phnom Penh
Explore the most affordable flight options available from Reagan-National to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Wed 11/56:05 amDCA - PNH

2 stops28h 20mKorean Air

Sun 11/1611:45 pmPNH - DCA

2 stops30h 20mKorean Air

Deal found 7/27

$1,049

Wed 11/59:59 amDCA - PNH

2 stops36h 36mChina Airlines

Sun 11/1611:35 amPNH - DCA

2 stops44h 25mChina Airlines

Deal found 7/29

$1,094

Tue 8/266:59 pmDCA - PNH

2 stops40h 56mAsiana Airlines

Mon 9/111:55 pmPNH - DCA

2 stops56h 04mAsiana Airlines

Deal found 7/28

$1,135

Wed 11/128:35 amDCA - PNH

2 stops51h 40mPhilippine Airlines

Tue 11/181:15 amPNH - DCA

2 stops31h 29mPhilippine Airlines

Deal found 7/26

$1,183

Wed 11/55:59 pmDCA - PNH

2 stops40h 56mUnited Airlines

Sun 11/1611:55 pmPNH - DCA

3 stops51h 00mUnited Airlines

Deal found 7/27

$1,577

Mon 8/47:32 pmDCA - PNH

2 stops27h 43mMultiple Airlines

Thu 9/116:55 pmPNH - DCA

3 stops61h 04mMultiple Airlines

Deal found 7/27

$1,739

Wed 11/510:45 amDCA - PNH

3 stops40h 40mQatar Airways

Sun 11/165:10 pmPNH - DCA

3 stops36h 54mQatar Airways

Deal found 7/28

$1,757

Wed 11/59:59 amDCA - PNH

3 stops58h 36mSingapore Airlines

Sun 11/162:40 pmPNH - DCA

2 stops41h 20mSingapore Airlines

Deal found 7/28

$1,774

Sat 12/206:57 pmDCA - PNH

2 stops52h 28mEVA Air

Mon 1/1912:45 pmPNH - DCA

2 stops40h 47mEVA Air

Deal found 7/29

$2,319

Best flights from Reagan-National to Phnom Penh
Discover carefully curated flight deals from Reagan-National to Phnom Penh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 9/128:59 amDCA - PNH

2 stops37h 51mChina Airlines

Fri 9/1910:50 amPNH - DCA

2 stops45h 09mChina Airlines

Deal found 7/29

$1,096

Tue 8/266:59 pmDCA - PNH

2 stops40h 56mAsiana Airlines

Mon 9/111:55 pmPNH - DCA

2 stops56h 04mAsiana Airlines

Deal found 7/28

$1,135

Fri 9/128:20 amDCA - PNH

2 stops28h 55mPhilippine Airlines

Thu 9/181:15 amPNH - DCA

2 stops30h 44mPhilippine Airlines

Deal found 7/29

$1,515

Fri 9/128:59 amDCA - PNH

2 stops41h 11mSingapore Airlines

Fri 9/196:55 pmPNH - DCA

3 stops61h 04mSingapore Airlines

Deal found 7/29

$1,672

Mon 8/47:32 pmDCA - PNH

2 stops27h 43mMultiple Airlines

Thu 9/116:55 pmPNH - DCA

3 stops61h 04mMultiple Airlines

Deal found 7/27

$1,739

Mon 8/43:45 pmDCA - PNH

3 stops37h 30mQatar Airways

Thu 9/115:40 pmPNH - DCA

3 stops40h 16mQatar Airways

Deal found 7/27

$1,782

Sat 8/29:39 amDCA - PNH

2 stops25h 31mKorean Air

Mon 8/411:30 pmPNH - DCA

2 stops34h 28mKorean Air

Deal found 7/29

$1,963

Sat 8/27:00 amDCA - PNH

2 stops28h 55mUnited Airlines

Mon 8/411:55 pmPNH - DCA

3 stops32h 01mUnited Airlines

Deal found 7/29

$7,236

Sat 8/25:00 pmDCA - PNH

3 stops36h 35mEmirates

Mon 8/48:50 pmPNH - DCA

3 stops36h 52mEmirates

Deal found 7/29

$14,558

Last-minute flights from Reagan-National to Phnom Penh
Discover last-minute flight deals from Reagan-National to Phnom Penh. Data last updated July 29, 2025 and is based on user searches.

Mon 8/49:59 amDCA - PNH

2 stops36h 51mChina Airlines

Thu 9/115:10 pmPNH - DCA

2 stops38h 49mChina Airlines

Deal found 7/27

$1,258

Mon 8/47:32 pmDCA - PNH

2 stops27h 43mMultiple Airlines

Thu 9/116:55 pmPNH - DCA

3 stops61h 04mMultiple Airlines

Deal found 7/27

$1,739

Mon 8/43:45 pmDCA - PNH

3 stops37h 30mQatar Airways

Thu 9/115:40 pmPNH - DCA

3 stops40h 16mQatar Airways

Deal found 7/27

$1,782

Tue 8/195:02 pmDCA - PNH

2 stops36h 03mChina Airlines

Wed 8/2710:50 amPNH - DCA

2 stops45h 09mChina Airlines

Deal found 7/28

$1,112

Tue 8/266:59 pmDCA - PNH

2 stops40h 56mAsiana Airlines

Mon 9/111:55 pmPNH - DCA

2 stops56h 04mAsiana Airlines

Deal found 7/28

$1,135

Tue 8/268:59 amDCA - PNH

3 stops36h 41mSingapore Airlines

Mon 9/12:05 pmPNH - DCA

2 stops41h 54mSingapore Airlines

Deal found 7/28

$1,815

Tue 8/266:05 amDCA - PNH

2 stops29h 05mKorean Air

Tue 9/211:30 pmPNH - DCA

2 stops29h 44mKorean Air

Deal found 7/27

$26,723

Tue 8/265:00 pmDCA - PNH

3 stops36h 35mEmirates

Tue 9/28:50 pmPNH - DCA

3 stops36h 53mEmirates

Deal found 7/27

$37,872

One-way flights from Reagan-National to Phnom Penh
Search for one-way flight options from Reagan-National to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 8/128:40 amDCA - PNH

2 stops26h 30mKorean Air

Deal found 7/27

$570

Sat 8/166:30 amDCA - PNH

2 stops40h 45mCathay Pacific

Deal found 7/27

$723

Fri 8/156:58 pmDCA - PNH

2 stops29h 17mEVA Air

Deal found 7/27

$747

Thu 8/1410:30 amDCA - PNH

3 stops42h 45mQatar Airways

Deal found 7/27

$927

Mon 9/228:59 amDCA - PNH

3 stops41h 11mSingapore Airlines

Deal found 7/28

$18,956

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Fri 9/12

8:59 am-9:50 am

2 stops37h 51m

Phnom Penh Pochentong

Fri 9/19

10:50 am-8:59 pm

2 stops45h 09m

$1,096

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 8/26

6:59 pm-10:55 pm

2 stops40h 56m

Phnom Penh Pochentong

Mon 9/1

11:55 pm-8:59 pm

2 stops56h 04m

$1,135

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Fri 9/12

8:20 am-12:15 am

2 stops28h 55m

Phnom Penh Pochentong

Thu 9/18

1:15 am-8:59 pm

2 stops30h 44m

$1,515

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Fri 9/12

8:59 am-1:10 pm

2 stops41h 11m

Phnom Penh Pochentong

Fri 9/19

6:55 pm-8:59 pm

3 stops61h 04m

$1,672

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 8/4

7:32 pm-10:15 am

2 stops27h 43m

Phnom Penh Pochentong

Thu 9/11

6:55 pm-8:59 pm

3 stops61h 04m

$1,739

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Mon 8/4

3:45 pm-4:15 pm

3 stops37h 30m

Phnom Penh Pochentong

Thu 9/11

5:40 pm-10:56 pm

3 stops40h 16m

$1,782

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 8/2

9:39 am-10:10 pm

2 stops25h 31m

Phnom Penh Pochentong

Mon 8/4

11:30 pm-10:58 pm

2 stops34h 28m

$1,963

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 8/2

7:00 am-10:55 pm

2 stops28h 55m

Phnom Penh Pochentong

Mon 8/4

11:55 pm-8:56 pm

3 stops32h 01m

$7,236

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 8/2

5:00 pm-4:35 pm

3 stops36h 35m

Phnom Penh Pochentong

Mon 8/4

8:50 pm-10:42 pm

3 stops36h 52m

$14,558

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Tue 8/12

8:40 am-10:10 pm

2 stops26h 30m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 14 results

Best time to book a flight from Reagan-National to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Reagan-National 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.

Reviews of airlines servicing Phnom Penh

Read reviews from past customers who have flown EVA Air, Korean Air, and China Airlines from Washington, D.C. Reagan-National Airport to Phnom Penh. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,221 reviews

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,121 reviews

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

China Airlines

8.3

Very good

754 reviews

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Asiana Airlines

8.2

Very good

465 reviews

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Emirates

8.1

Very good

3,295 reviews

EVA Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

What airport do you fly into for flights to Phnom Penh from Washington, D.C. Reagan-National?
Phnom Penh Pochentong (PNH), located 5.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Phnom Penh. 1 airline have flights to Pochentong from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Phnom Penh Pochentong should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Phnom Penh round-trip?
Our cheapest airline available from Washington, D.C. Reagan-National Airport to Phnom Penh is China Airlines. Our recent data shows that you can find tickets from as low as $1,096 on this airline. Additional options worth looking into are Asiana Airlines and Philippine Airlines, starting at $1,135 and $1,515 round-trip.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Phnom Penh one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Phnom Penh are Korean Air ($570), Cathay Pacific ($723), and EVA Air ($747).
Can I find deals for flights from Reagan-National to Phnom Penh that include hotel bookings?
Yes. In addition to deals on Reagan-National to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Phnom Penh?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Phnom Penh.
Can I find deals for business class flights from Reagan-National to Phnom Penh?
Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Phnom Penh?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Phnom Penh (average of $988). Flying from Washington, D.C. Reagan-National Airport to Phnom Penh in June is currently the most expensive (average of $1,549). 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

Top airline flying from Reagan-National to Phnom Penh

Airline	Cheapest	Average	Flexibility	On-time
Asiana Airlines	Cheapest$1,415	Average$1,415	FlexibilityNo cancel fee	On-time76%

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$570+ Cheap flights from Reagan-National (DCA) 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Reagan-National to Phnom Penh

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Find flight deals from Reagan-National to Phnom Penh

Cheapest flights from Reagan-National to Phnom PenhExplore the most affordable flight options available from Reagan-National to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Reagan-National to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Reagan-National with our price prediction graph.

Reviews of airlines servicing Phnom Penh

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

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

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

Can I find deals for flights from Reagan-National to Phnom Penh that include hotel bookings?

How can I find direct flights from Reagan-National to Phnom Penh?

Can I find deals for business class flights from Reagan-National to Phnom Penh?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Reagan-National to Phnom Penh

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Top airline flying from Reagan-National to Phnom Penh

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Cheapest flights from Reagan-National to Phnom Penh
Explore the most affordable flight options available from Reagan-National to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.