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Dulles Intl

$1,023+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — IAD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Phnom Penh to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Dulles Intl (IAD). 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 September 11, 2025.

Round-trip from

$1,672
(oojo)

One-way from

$1,023
(oojo)

Popular in

December

Cheapest in

February

Average price

$1,791
From Phnom Penh Pochentong to Washington, D.C. Dulles Intl
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One-way flight from Phnom Penh Pochentong to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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.
Sat 11/17:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Sat 11/159:10 pmIAD - PNH
1 stop21h 20mEtihad Airways
Deal found 9/10$1,672
This Etihad Airways deal was found by Cheapflights users on 9/10. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Tue 11/119:10 pmIAD - PNH
1 stop33h 15mEtihad Airways
Deal found 9/10$1,734
This Gurufare deal was found by Cheapflights users on 9/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:55 amPNH - IAD
1 stop43h 55mMultiple Airlines
Sat 11/159:00 pmIAD - PNH
2 stops45h 30mMultiple Airlines
Deal found 9/10$2,721
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:55 amPNH - IAD
1 stop43h 55mEtihad Airways
Sat 11/229:10 pmIAD - PNH
1 stop21h 20mEtihad Airways
Deal found 9/11$6,007
This Etihad Airways deal was found by Cheapflights users on 9/11. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:50 pmPNH - IAD
1 stop32h 00mMultiple Airlines
Sat 11/2210:20 pmIAD - PNH
2 stops44h 10mMultiple Airlines
Deal found 9/11$7,686
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:55 amPNH - IAD
1 stop43h 55mMultiple Airlines
Fri 11/219:00 pmIAD - PNH
2 stops45h 30mMultiple Airlines
Deal found 9/10$8,071

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phnom Penh to Dulles Intl 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 2,558,603 searches. Data last updated September 11, 2025.
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

Phnom Penh

Fly to

Dulles Intl

Route

Depart

Return

Price

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Sat 11/1

7:55 am-4:50 pm

1 stop43h 55m

Washington, D.C. Dulles Intl

Sat 11/15

9:10 pm-6:30 am

1 stop21h 20m

$1,672

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 11/7

7:55 am-3:50 pm

1 stop43h 55m

Washington, D.C. Dulles Intl

Tue 11/11

9:10 pm-6:25 pm

1 stop33h 15m

$1,734

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Sat 11/1

7:55 am-4:50 pm

1 stop43h 55m

Washington, D.C. Dulles Intl

Sat 11/15

9:00 pm-6:30 am

2 stops45h 30m

$2,721

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 11/11

7:55 am-3:50 pm

1 stop43h 55m

Washington, D.C. Dulles Intl

Sat 11/22

9:10 pm-6:30 am

1 stop21h 20m

$6,007

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 11/11

7:50 pm-3:50 pm

1 stop32h 00m

Washington, D.C. Dulles Intl

Sat 11/22

10:20 pm-6:30 am

2 stops44h 10m

$7,686

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Mon 11/10

7:55 am-3:50 pm

1 stop43h 55m

Washington, D.C. Dulles Intl

Fri 11/21

9:00 pm-6:30 am

2 stops45h 30m

$8,071

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 12/23

7:55 am-3:50 pm

1 stop43h 55m

$1,023

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 2/6

7:55 am-3:50 pm

1 stop43h 55m

$1,039

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 12/23

7:50 pm-8:30 pm

2 stops36h 40m

$1,951

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Fri 2/6

7:55 am-8:30 pm

2 stops48h 35m

$1,967

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 16 results
1
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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.

Cheapflights Insights

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

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

Currently, August is the cheapest month in which you can book a flight from Phnom Penh to Washington, D.C. Dulles Intl Airport (average of $292). 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.

How much does it cost to fly round-trip from Phnom Penh to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Korean Air and Air China 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.
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air China
7.2
Good
99 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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?

    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.

  • How long is the flight from Phnom Penh to Washington, D.C. Dulles Intl Airport?

    Etihad Airways can get you from Phnom Penh to Washington, D.C. Dulles Intl Airport in just under 43h 55m. Your travel time can differ by up to . Phnom Penh and Washington, D.C. Dulles Intl Airport are separated by a distance of 8939 mi.

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

    Currently priced at $855, Air China will fly you from Phnom Penh to Washington, D.C. Dulles Intl Airport and back. In addition to Air China, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Korean Air for as low as $1,476. Users have found that Air China is 50% cheaper than the other options available to this destination.

  • 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, August is the cheapest month in which you can book a flight from Phnom Penh to Washington, D.C. Dulles Intl Airport (average of $292). 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.

See more FAQs

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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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.
Phnom Penh to Reagan-National flights

Top 2 airlines flying from Phnom Penh to Dulles Intl

Discover the top 2 airlines that operate flights from Phnom Penh to Dulles Intl. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$855Average$937FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,476Average$1,743FlexibilityNo cancel feeOn-time81%

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