PNH - IAD

$616 Find Cheap Flights from Phnom Penh to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phnom Penh to Dulles Intl departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Washington, D.C., as well as popular online travel agencies
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Flights Deals

Cheap Flights from Phnom Penh to Dulles Intl (PNH-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phnom Penh to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phnom Penh to Dulles Intl

Fri, Sep 12 - Fri, Sep 19
 Logo
7:10 pm - 7:45 pmPNH-IAD
35h 35m3 stops
 Logo
6:50 pm - 2:30 pmIAD-PNH
32h 40m3 stops
$1,480
Find Deal
Fri, Sep 12 - Fri, Sep 19
 Logo
11:25 am - 7:40 amPNH-IAD
31h 15m2 stops
 Logo
6:50 pm - 2:30 pmIAD-PNH
32h 40m3 stops
$1,497
Find Deal
Wed, Jul 16 - Fri, Oct 3
Air China Logo
12:15 pm - 7:30 pmPNH-IAD
66h 15m3 stops
Air China Logo
11:00 pm - 11:10 amIAD-PNH
49h 10m2 stops
$1,528Air China
Find Deal
Fri, Sep 12 - Fri, Sep 19
Korean Air Logo
11:30 pm - 10:55 amPNH-IAD
22h 25m1 stop
Korean Air Logo
1:15 pm - 10:10 pmIAD-PNH
21h 55m1 stop
$1,543Korean Air
Find Deal
Fri, Sep 12 - Fri, Sep 19
 Logo
11:25 am - 7:40 amPNH-IAD
31h 15m2 stops
 Logo
1:15 pm - 10:10 pmIAD-PNH
21h 55m1 stop
$1,622
Find Deal
Wed, Jul 16 - Fri, Oct 3
Korean Air Logo
11:30 pm - 11:15 amPNH-IAD
22h 45m1 stop
Korean Air Logo
1:15 pm - 10:10 pmIAD-PNH
21h 55m1 stop
$1,890Korean Air
Find Deal
Wed, Jul 16 - Fri, Oct 3
 Logo
11:30 pm - 10:16 pmPNH-IAD
33h 46m2 stops
 Logo
1:15 pm - 10:10 pmIAD-PNH
21h 55m1 stop
$1,938
Find Deal
Tue, Jul 15 - Fri, Oct 3
Air China Logo
12:20 am - 9:21 pmPNH-IAD
32h 01m2 stops
Air China Logo
11:00 pm - 11:05 pmIAD-PNH
37h 05m1 stop
$2,255Air China
Find Deal
Fri, Aug 8 - Mon, Aug 18
Emirates Logo
8:50 pm - 8:40 amPNH-IAD
46h 50m2 stops
Emirates Logo
3:39 pm - 4:35 pmIAD-PNH
37h 56m3 stops
$16,940Emirates
Find Deal
Fri, Aug 8 - Mon, Aug 18
Emirates Logo
8:50 pm - 11:41 pmPNH-IAD
37h 51m3 stops
Emirates Logo
3:39 pm - 4:35 pmIAD-PNH
37h 56m3 stops
$18,135Emirates
Find Deal
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KAYAK's insights & trends for Phnom Penh to Dulles Intl flights

Get data-powered insights and trends into flights from Phnom Penh to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Phnom Penh to Washington Dulles Airport?

The average price of all round-trip flights from Phnom Penh to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Tuesday and more expensive on a Sunday. On your return trip to Phnom Penh, you should consider flying back on a Friday, and avoid Wednesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phnom Penh to Washington, D.C. Dulles Intl Airport is February, where tickets cost $937 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $3,097 and $2,459 respectively.

Good to know

Low seasonAugust
High seasonSeptember
Cheapest flight$616
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Phnom Penh to Washington Dulles Airport

When to book flights from Phnom Penh to Dulles Intl

Are your dates flexible? Find out the best times to travel from Phnom Penh to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phnom Penh to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Phnom Penh to Washington, D.C. Dulles Intl Airport was $616 for a one-way ticket and $1,480 for a round-trip.

  • Do I need a passport to fly between Phnom Penh and Washington Dulles Airport?

    A passport is required to fly from Phnom Penh to Washington Dulles Airport.

  • Which airports will I be using when flying from Phnom Penh to Washington Dulles Airport?

    Phnom Penh and Washington Dulles Airport are both served by 1 main airport. You will leave Phnom Penh from Phnom Penh Pochentong and will be arriving at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Phnom Penh to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phnom Penh to Washington Dulles Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Phnom Penh and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Phnom Penh to Washington, D.C., Korean Air or Air China?

    The two airlines most popular with KAYAK users for flights from Phnom Penh to Washington, D.C. are Korean Air and Air China. With an average price for the route of $1,796 and an overall rating of 8.4, Korean Air is the most popular choice. Air China is also a great choice for the route, with an average price of $937 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Phnom Penh to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phnom Penh to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phnom Penh to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Phnom Penh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phnom Penh to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Phnom Penh with another airline. Booking your flights between Phnom Penh and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phnom Penh to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Phnom Penh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Phnom Penh to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phnom Penh to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1090 reviews
8.2Entertainment
8.3Comfort
8.1Food
8.5Boarding
8.7Crew
Airline reviews

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

10.0 ExcellentAnonymous, May 2025LAS - ICN
Read more Korean Air reviews

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

Everything you need to know for your flight from Phnom Penh to Dulles Intl

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