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 $995). Flying from Washington, D.C. Reagan-National Airport 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 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.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Phnom Penh?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 8 days in advance, which can save you up to 6% on flights from Washington, D.C. Reagan-National Airport to Phnom Penh compared to booking the week you need them. Waiting 8 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,060. For sooner than that we have options available in the next 3 days from $1,752.

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

September is one of the best times of the year to fly to Phnom Penh from Washington, D.C. Reagan-National Airport. Prices for September average $1,673 per person but you can even find prices for as low as $1,162. The most expensive prices can be found in the month of July. Opting for a September flight can save you 17% on your journey compared to booking in July

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.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Phnom Penh flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-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. 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. 0 airlines 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.

$585+ Flights from Washington, D.C. Reagan-National Airport to Phnom Penh

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Cheap flight deals from Reagan-National to Phnom Penh

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,350 (China Airlines)
One-way from	$585 (Kiwi.com)
Popular in	July
Cheapest in	September
Average price	$1,727

Provider with most accurate pricing for Washington, D.C. Reagan-National-Phnom Penh Pochentong flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Phnom Penh Pochentong flights.

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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. 9% potential increase in price ($177 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in March 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 March 31, 2025.

Sun 10/197:45 pmDCA - PNH

2 stops34h 35mCathay Pacific

Sun 11/167:05 pmPNH - DCA

2 stops33h 20mCathay Pacific

Deal found 3/29

$1,266

Mon 5/126:35 pmDCA - PNH

2 stops28h 15mMultiple Airlines

Mon 5/195:10 pmPNH - DCA

2 stops38h 49mMultiple Airlines

Deal found 3/30

$1,350

Tue 10/149:30 amDCA - PNH

3 stops40h 40mSingapore Airlines

Tue 10/282:50 pmPNH - DCA

2 stops41h 05mSingapore Airlines

Deal found 3/29

$1,418

Tue 10/144:40 pmDCA - PNH

3 stops36h 55mEmirates

Tue 10/288:35 pmPNH - DCA

3 stops36h 41mEmirates

Deal found 3/29

$1,816

Thu 6/268:20 amDCA - PNH

2 stops28h 55mPhilippine Airlines

Thu 8/71:15 amPNH - DCA

2 stops30h 59mPhilippine Airlines

Deal found 3/30

$2,194

Wed 10/2910:40 amDCA - PNH

3 stops41h 45mQatar Airways

Tue 1/275:10 pmPNH - DCA

3 stops30h 25mQatar Airways

Deal found 3/30

$2,454

Sun 12/146:05 amDCA - PNH

2 stops28h 20mKorean Air

Sat 1/311:45 pmPNH - DCA

2 stops29h 48mKorean Air

Deal found 3/30

$2,610

Sun 12/144:07 pmDCA - PNH

3 stops42h 48mUnited Airlines

Sat 1/311:55 pmPNH - DCA

2 stops33h 18mUnited Airlines

Deal found 3/30

$4,393

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 March 31, 2025.

Mon 5/126:35 pmDCA - PNH

2 stops28h 15mMultiple Airlines

Mon 5/195:10 pmPNH - DCA

2 stops38h 49mMultiple Airlines

Deal found 3/30

$1,350

Sun 6/86:00 amDCA - PNH

2 stops41h 15mCathay Pacific

Sun 6/156:30 pmPNH - DCA

2 stops48h 20mCathay Pacific

Deal found 3/30

$1,990

Thu 6/268:20 amDCA - PNH

2 stops28h 55mPhilippine Airlines

Thu 8/71:15 amPNH - DCA

2 stops30h 59mPhilippine Airlines

Deal found 3/30

$2,194

Sat 5/318:59 amDCA - PNH

2 stops45h 41mSingapore Airlines

Sat 6/76:55 pmPNH - DCA

2 stops61h 04mSingapore Airlines

Deal found 3/30

$2,216

Thu 6/267:00 pmDCA - PNH

3 stops34h 15mQatar Airways

Fri 8/85:40 pmPNH - DCA

3 stops33h 44mQatar Airways

Deal found 3/30

$2,826

Thu 4/32:46 pmDCA - PNH

3 stops38h 49mEmirates

Sat 4/58:50 pmPNH - DCA

3 stops38h 09mEmirates

Deal found 3/30

$2,847

Last-minute flights from Reagan-National to Phnom Penh
Discover last-minute flight deals from Reagan-National to Phnom Penh. Data last updated March 31, 2025 and is based on user searches.

Wed 4/211:59 amDCA - PNH

2 stops35h 16mCathay Pacific

Tue 4/2211:25 amPNH - DCA

2 stops45h 50mCathay Pacific

Deal found 3/30

$1,540

Wed 4/28:59 amDCA - PNH

3 stops36h 41mSingapore Airlines

Tue 4/222:05 pmPNH - DCA

2 stops41h 53mSingapore Airlines

Deal found 3/30

$1,625

Wed 4/22:46 pmDCA - PNH

3 stops38h 49mEmirates

Tue 4/228:50 pmPNH - DCA

3 stops36h 45mEmirates

Deal found 3/30

$2,321

Thu 4/36:59 amDCA - PNH

2 stops23h 21mMultiple Airlines

Fri 4/412:10 amPNH - DCA

2 stops33h 18mMultiple Airlines

Deal found 3/30

$2,146

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 March 31, 2025.

Thu 4/247:00 amDCA - PNH

3 stops40h 15mMultiple Airlines

Deal found 3/30

$585

Thu 4/2411:54 amDCA - PNH

2 stops35h 21mCathay Pacific

Deal found 3/30

$624

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

Mon 5/12

6:35 pm-9:50 am

2 stops28h 15m

Phnom Penh Pochentong

Mon 5/19

5:10 pm-8:59 pm

2 stops38h 49m

$1,350

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sun 6/8

6:00 am-10:15 am

2 stops41h 15m

Phnom Penh Pochentong

Sun 6/15

6:30 pm-7:50 am

2 stops48h 20m

$1,990

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 6/26

8:20 am-12:15 am

2 stops28h 55m

Phnom Penh Pochentong

Thu 8/7

1:15 am-9:14 pm

2 stops30h 59m

$2,194

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Sat 5/31

8:59 am-5:40 pm

2 stops45h 41m

Phnom Penh Pochentong

Sat 6/7

6:55 pm-8:59 pm

2 stops61h 04m

$2,216

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 6/26

7:00 pm-4:15 pm

3 stops34h 15m

Phnom Penh Pochentong

Fri 8/8

5:40 pm-4:24 pm

3 stops33h 44m

$2,826

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 4/3

2:46 pm-4:35 pm

3 stops38h 49m

Phnom Penh Pochentong

Sat 4/5

8:50 pm-11:59 pm

3 stops38h 09m

$2,847

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 4/24

7:00 am-10:15 am

3 stops40h 15m

$585

Washington, D.C.Phnom Penh

DCA - PNH

DCAPNH

Washington, D.C. Reagan-National

Thu 4/24

11:54 am-10:15 am

2 stops35h 21m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Compare providers for flights from Reagan-National to Phnom Penh

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Phnom Penh in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*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. Reagan-National Airport-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. Reagan-National Airport-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Phnom Penh flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-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 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.

Cheapflights Insights

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

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

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Singapore Airlines

8.1

Very good

1,286 reviews

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Emirates

8.0

Very good

3,192 reviews

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Cathay Pacific

7.5

Good

841 reviews

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Qatar Airways

7.4

Good

3,541 reviews

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Philippine Airlines

7.2

Good

847 reviews

Singapore Airlines

8.1

Very good

1,286 reviews

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

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. 0 airlines 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.
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 $995). Flying from Washington, D.C. Reagan-National Airport to Phnom Penh in June is currently the most expensive (average of $1,582). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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$585+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Phnom Penh with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Phnom Penh

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 March 31, 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 March 31, 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.

Compare providers for flights from Reagan-National 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 Reagan-National to Phnom Penh in March.

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.

Cheapflights Insights

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

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

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?

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

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

Alternative routes for 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 March 31, 2025.