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Dulles Intl

$734+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — IAD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,170
(Mytrip)

One-way from

$734
(China Airlines)

Popular in

December

Cheapest in

February

Average price

$1,635
Provider with most accurate pricing for Phnom Penh Pochentong-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Washington, D.C. Dulles Intl flights.
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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. 6% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($56 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 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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/168:50 pmPNH - IAD
2 stops29h 55mMultiple Airlines
Tue 4/2211:00 amIAD - PNH
3 stops34h 55mMultiple Airlines
Deal found 3/27$1,170
This Singapore Airlines deal was found by Cheapflights users on 3/27. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:55 pmPNH - IAD
2 stops45h 45mSingapore Airlines
Sun 4/207:31 amIAD - PNH
2 stops42h 39mSingapore Airlines
Deal found 3/27$1,627
This CheapOair deal was found by Cheapflights users on 3/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/511:30 pmPNH - IAD
2 stops32h 52mKorean Air
Wed 9/171:15 pmIAD - PNH
1 stop21h 55mKorean Air
Deal found 3/28$1,838
This StudentUniverse deal was found by Cheapflights users on 3/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/138:50 pmPNH - IAD
1 stop46h 50mEmirates
Tue 6/1010:55 amIAD - PNH
1 stop42h 40mEmirates
Deal found 3/27$1,880
This KAYAK deal was found by Cheapflights users on 3/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1512:20 amPNH - IAD
2 stops32h 00mAir China
Tue 4/2211:00 pmIAD - PNH
3 stops49h 10mAir China
Deal found 3/27$2,272

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 March 28, 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

Wed 4/16

8:50 pm-3:45 pm

2 stops29h 55m

Washington, D.C. Dulles Intl

Tue 4/22

11:00 am-8:55 am

3 stops34h 55m

$1,170

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Thu 4/10

6:55 pm-5:40 am

2 stops45h 45m

Washington, D.C. Dulles Intl

Sun 4/20

7:31 am-1:10 pm

2 stops42h 39m

$1,627

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Sun 4/13

8:50 pm-8:40 am

1 stop46h 50m

Washington, D.C. Dulles Intl

Tue 6/10

10:55 am-4:35 pm

1 stop42h 40m

$1,880

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Sat 5/10

11:30 pm-11:15 am

1 stop22h 45m

Washington, D.C. Dulles Intl

Sat 5/24

1:15 pm-10:10 pm

1 stop21h 55m

$2,204

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 4/15

12:20 am-9:20 pm

2 stops32h 00m

Washington, D.C. Dulles Intl

Tue 4/22

11:00 pm-11:10 am

3 stops49h 10m

$2,272

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 4/2

10:50 am-5:22 pm

2 stops41h 32m

$734

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 4/2

11:30 pm-11:15 am

1 stop22h 45m

$1,166

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Tue 4/15

5:40 pm-3:40 pm

1 stop33h 00m

$1,220

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Wed 4/2

8:50 pm-11:59 pm

3 stops38h 09m

$1,461

Phnom PenhWashington, D.C.

PNH - IAD

PNHIAD

Phnom Penh Pochentong

Mon 4/14

12:10 am-7:53 pm

2 stops30h 43m

$2,025

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Phnom Penh to Dulles Intl

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 Phnom Penh to Dulles Intl in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy1 starTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust 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 Phnom Penh-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-Washington, D.C. Dulles Intl Airport 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 Phnom Penh-Washington, D.C. Dulles Intl Airport 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 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 $309). Flying from Phnom Penh to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

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 March 28, 2025.
Get a feel of what it's like to fly with Korean Air, Singapore Airlines and Emirates from Phnom Penh to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,285 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Emirates
8.0
Very good
3,190 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Qatar Airways
7.4
Good
3,538 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
China Eastern
7.1
Good
137 reviews
Korean Air
8.4
Very good
1,050 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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.

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

    Currently priced at $1,627, Singapore Airlines will fly you from Phnom Penh to Washington, D.C. Dulles Intl Airport and back. In addition to Singapore Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Emirates and Korean Air - these airlines can fly you to your destination from $1,880 and $2,204, respectively. Users have found that Singapore Airlines is 11% 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 Korean Air ($1,166), Qatar Airways ($1,220), and Emirates ($1,461).

  • 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 $309). Flying from Phnom Penh to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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 Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Woodbridge
Gaithersburg
Fredericksburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
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Bowie
Gettysburg
National Harbor
Oxon Hill

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$855Average$937FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,533Average$1,703FlexibilityNo cancel feeOn-time81%
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