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

Currently priced at $1,669, Asiana Airlines will fly you from Phnom Penh to Washington, D.C. Dulles Intl Airport and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Etihad Airways - these airlines can fly you to your destination from $1,688 and $1,734, respectively. Users have found that Asiana Airlines is 5% cheaper than the other options available to this destination.

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

The cheapest airlines for a one-way flight from Phnom Penh to Washington, D.C. Dulles Intl Airport are Air China ($694), EVA Air ($861), and Etihad Airways ($1,026).

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

Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Phnom Penh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 Phnom Penh to Washington, D.C. Dulles Intl Airport?

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Monday is generally a great day to depart. Flying on this day could help you save up to 163%.

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

A simple way to save on the total cost of your ticket is to fly from Phnom Penh to Washington, D.C. Dulles Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

What airport do you fly from for flights from Phnom Penh to Washington, D.C. Dulles Intl?

If you book a flight to Washington, D.C. Dulles Intl from Phnom Penh, you will be flying from 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 Pochentong to Washington, D.C. Dulles Intl per day from 2 different airlines.

Can I find deals for flights from Phnom Penh to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Phnom Penh to Dulles Intl?

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

Can I find deals for business class flights from Phnom Penh to Dulles Intl?

Yes. Cheapflights offers flight deals from Phnom Penh to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$694+ Flights from Phnom Penh to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Phnom Penh to Dulles Intl

Round-trip from	$1,669 (Asiana Airlines)
One-way from	$694 (Air China)
Popular in	December
Cheapest in	February
Average price	$1,927

From Phnom Penh Pochentong to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Phnom Penh Pochentong to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($192 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($69 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 Phnom Penh to Dulles Intl

Cheapest flights from Phnom Penh to Dulles Intl
Explore the most affordable flight options available from Phnom Penh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Fri 11/711:55 pmPNH - IAD

2 stops32h 44mAsiana Airlines

Tue 11/1112:35 pmIAD - PNH

2 stops46h 20mAsiana Airlines

Deal found 7/28

$1,669

Fri 11/711:45 pmPNH - IAD

2 stops36h 55mDelta

Tue 11/116:10 amIAD - PNH

2 stops28h 15mDelta

Deal found 7/29

$1,688

Fri 11/77:55 amPNH - IAD

1 stop44h 10mEtihad Airways

Tue 11/119:10 pmIAD - PNH

1 stop33h 20mEtihad Airways

Deal found 7/28

$1,734

Wed 9/248:45 pmPNH - IAD

2 stops46h 55mMultiple Airlines

Sun 10/510:55 amIAD - PNH

2 stops45h 45mMultiple Airlines

Deal found 7/29

$5,307

Tue 9/305:40 pmPNH - IAD

3 stops40h 08mQatar Airways

Sat 10/115:37 pmIAD - PNH

3 stops35h 38mQatar Airways

Deal found 7/30

$8,125

Best flights from Phnom Penh to Dulles Intl
Discover carefully curated flight deals from Phnom Penh to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Fri 11/711:55 pmPNH - IAD

2 stops32h 44mAsiana Airlines

Tue 11/1112:35 pmIAD - PNH

2 stops46h 20mAsiana Airlines

Deal found 7/28

$1,669

Fri 11/711:45 pmPNH - IAD

2 stops36h 55mDelta

Tue 11/116:10 amIAD - PNH

2 stops28h 15mDelta

Deal found 7/29

$1,688

Fri 11/77:55 amPNH - IAD

1 stop44h 10mEtihad Airways

Tue 11/119:10 pmIAD - PNH

1 stop33h 20mEtihad Airways

Deal found 7/28

$1,734

Wed 9/248:45 pmPNH - IAD

2 stops46h 55mMultiple Airlines

Sun 10/510:55 amIAD - PNH

2 stops45h 45mMultiple Airlines

Deal found 7/29

$5,307

Tue 9/305:40 pmPNH - IAD

3 stops40h 08mQatar Airways

Sat 10/115:37 pmIAD - PNH

3 stops35h 38mQatar Airways

Deal found 7/30

$8,125

Last-minute flights from Phnom Penh to Dulles Intl
Discover last-minute flight deals from Phnom Penh to Dulles Intl. Data last updated July 30, 2025 and is based on user searches.

Sun 8/312:35 pmPNH - IAD

2 stops29h 15mMultiple Airlines

Mon 8/117:59 pmIAD - PNH

2 stops28h 16mMultiple Airlines

Deal found 7/30

$1,814

Sun 8/311:30 pmPNH - IAD

1 stop22h 45mKorean Air

Mon 8/111:30 pmIAD - PNH

1 stop21h 40mKorean Air

Deal found 7/30

$2,804

Sun 8/38:50 pmPNH - IAD

3 stops38h 08mEmirates

Mon 8/1110:55 amIAD - PNH

2 stops42h 40mEmirates

Deal found 7/30

$3,394

One-way flights from Phnom Penh to Dulles Intl
Search for one-way flight options from Phnom Penh to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Mon 12/2212:25 amPNH - IAD

1 stop30h 05mAir China

Deal found 7/30

$694

Tue 12/2312:45 pmPNH - IAD

2 stops29h 28mEVA Air

Deal found 7/29

$861

Tue 12/237:55 pmPNH - IAD

1 stop32h 10mEtihad Airways

Deal found 7/30

$1,026

Mon 12/2212:25 amPNH - IAD

2 stops32h 40mMultiple Airlines

Deal found 7/29

$1,079

Wed 1/711:45 pmPNH - IAD

1 stop22h 05mKorean Air

Deal found 7/29

$1,269

Sat 9/205:40 pmPNH - IAD

1 stop33h 00mQatar Airways

Deal found 7/29

$4,385

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

11:55 pm-8:39 pm

2 stops32h 44m

Washington, D.C. Dulles Intl

Tue 11/11

12:35 pm-10:55 pm

2 stops46h 20m

$1,669

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

11:45 pm-12:40 am

2 stops36h 55m

Washington, D.C. Dulles Intl

Tue 11/11

6:10 am-10:25 pm

2 stops28h 15m

$1,688

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

7:55 am-4:05 pm

1 stop44h 10m

Washington, D.C. Dulles Intl

Tue 11/11

9:10 pm-6:30 pm

1 stop33h 20m

$1,734

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 9/24

8:45 pm-8:40 am

2 stops46h 55m

Washington, D.C. Dulles Intl

Sun 10/5

10:55 am-7:40 pm

2 stops45h 45m

$5,307

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 9/30

5:40 pm-10:48 pm

3 stops40h 08m

Washington, D.C. Dulles Intl

Sat 10/11

5:37 pm-4:15 pm

3 stops35h 38m

$8,125

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Mon 12/22

12:25 am-6:30 pm

1 stop30h 05m

$694

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 12/23

12:45 pm-6:13 am

2 stops29h 28m

$861

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 12/23

7:55 pm-4:05 pm

1 stop32h 10m

$1,026

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Mon 12/22

12:25 am-9:05 pm

2 stops32h 40m

$1,079

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 1/7

11:45 pm-9:50 am

1 stop22h 05m

$1,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results

Best time to book a flight from Phnom Penh to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Phnom Penh 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 Dulles Intl

Read reviews from past customers who have flown EVA Air, Korean Air, and Asiana Airlines from Phnom Penh to Washington, D.C. Dulles Intl Airport. 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

1,222 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

1,222 reviews

EVA Air

8.4

Very good

1,222 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

1,222 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

467 reviews

EVA Air

8.4

Very good

1,222 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

Delta

8.0

Very good

7,980 reviews

EVA Air

8.4

Very good

1,222 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

Qatar Airways

7.4

Good

3,607 reviews

EVA Air

8.4

Very good

1,222 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 from for flights from Phnom Penh to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Phnom Penh, you will be flying from 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 Pochentong to Washington, D.C. Dulles Intl per day from 2 different airlines.
What are the cheapest airlines flying from Phnom Penh to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $1,669, Asiana Airlines will fly you from Phnom Penh to Washington, D.C. Dulles Intl Airport and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Etihad Airways - these airlines can fly you to your destination from $1,688 and $1,734, respectively. Users have found that Asiana Airlines is 5% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Phnom Penh to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Phnom Penh to Washington, D.C. Dulles Intl Airport are Air China ($694), EVA Air ($861), and Etihad Airways ($1,026).
Can I find deals for flights from Phnom Penh to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Phnom Penh to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Phnom Penh to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to Dulles Intl.
Can I find deals for business class flights from Phnom Penh to Dulles Intl?
Yes. Cheapflights offers flight deals from Phnom Penh to Dulles Intl 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 Phnom Penh to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Phnom Penh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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Top 2 airlines flying from Phnom Penh to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest$855	Average$937	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$1,476	Average$1,793	FlexibilityNo cancel fee	On-time81%

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$694+ Cheap flights from Phnom Penh (PNH) to Dulles Intl (IAD)

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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Phnom Penh to Dulles Intl with Cheapflights

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3. Compare prices and book

Cheap flight deals from Phnom Penh to Dulles Intl

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One-way from

Popular in

Cheapest in

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Find flight deals from Phnom Penh to Dulles Intl

Cheapest flights from Phnom Penh to Dulles IntlExplore the most affordable flight options available from Phnom Penh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Phnom Penh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Phnom Penh to Dulles Intl

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

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Dulles Intl. 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 from for flights from Phnom Penh to Washington, D.C. Dulles Intl?

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

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

Can I find deals for flights from Phnom Penh to Dulles Intl that include hotel bookings?

How can I find direct flights from Phnom Penh to Dulles Intl?

Can I find deals for business class flights from Phnom Penh to Dulles Intl?

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phnom Penh to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Phnom Penh to Dulles Intl

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Cheapest flights from Phnom Penh to Dulles Intl
Explore the most affordable flight options available from Phnom Penh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.