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IAD - PNH

Find cheap flights from Washington Dulles Airport to Phnom Penh from $817

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Phnom Penh departing on 5/28. 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
0 bags
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Phnom Penh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Phnom Penh, 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 Washington, D.C. to Phnom Penh, as well as popular online travel agencies
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Phnom Penh 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 and deals for you by selecting your travel dates.
Choose your dates
10:00 pm - 2:25 pmIAD-PNH
29h 25m2 stops
7:25 pm - 4:35 pmPNH-IAD
32h 10m2 stops
$1,143Etihad Airways
Find Deal
Mon, Sep 16 - Tue, Sep 24
10:00 pm - 9:30 amIAD-PNH
48h 30m2 stops
7:25 pm - 4:35 pmPNH-IAD
56h 10m2 stops
$1,144Etihad Airways
Find Deal
Thu, Sep 26 - Fri, Oct 11
10:00 pm - 9:30 amIAD-PNH
48h 30m2 stops
3:15 pm - 5:40 pmPNH-IAD
61h 25m2 stops
$1,190
Find Deal
Tue, Oct 8 - Fri, Oct 25
5:38 pm - 5:30 pmIAD-PNH
36h 52m2 stops
9:35 am - 4:33 pmPNH-IAD
41h 58m2 stops
$1,235Singapore Airlines
Find Deal
Wed, Sep 4 - Wed, Sep 25
5:38 pm - 11:15 amIAD-PNH
30h 37m2 stops
12:35 pm - 4:33 pmPNH-IAD
38h 58m2 stops
$1,304
Find Deal
Mon, Sep 16 - Wed, Sep 25
1:25 pm - 10:10 pmIAD-PNH
21h 45m1 stop
11:40 pm - 11:15 amPNH-IAD
22h 35m1 stop
$1,457Korean Air
Find Deal
Mon, Sep 16 - Wed, Sep 25
5:38 pm - 8:40 amIAD-PNH
52h 02m3 stops
2:05 pm - 4:33 pmPNH-IAD
37h 28m2 stops
$1,462Singapore Airlines
Find Deal
Mon, Sep 16 - Wed, Sep 25
1:25 pm - 10:10 pmIAD-PNH
21h 45m1 stop
11:40 pm - 11:15 amPNH-IAD
22h 35m1 stop
$1,479Korean Air
Find Deal
Thu, Sep 12 - Sun, Sep 22
10:55 am - 4:15 pmIAD-PNH
42h 20m2 stops
11:10 am - 8:45 amPNH-IAD
56h 35m2 stops
$1,834Qatar Airways
Find Deal
Mon, Jun 10 - Sun, Jun 30
10:55 am - 4:00 pmIAD-PNH
42h 05m2 stops
5:30 pm - 4:10 pmPNH-IAD
57h 40m2 stops
$1,918Qatar Airways
Find Deal
Sat, Jun 1 - Sat, Jun 15

Flights from Dulles Intl to Phnom Penh - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Phnom Penh 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 Washington Dulles Airport to Phnom Penh?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Phnom Penh clicked on KAYAK for each day over the last 12 months.
For Washington Dulles Airport to Phnom Penh, Friday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Phnom Penh back to Washington Dulles Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Phnom Penh, 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 Washington, D.C. Dulles Intl Airport to Phnom Penh is September, where tickets cost $1,306 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $2,293 and $2,014 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Phnom Penh, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 22 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to Phnom Penh?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Phnom Penh from Washington Dulles Airport were found on Korean Air ($951) and Etihad Airways ($1,041), and the lowest round-trip tickets were found on Etihad Airways ($1,143) and Singapore Airlines ($1,235).

Good to know

Low season

February

High season

July

Cheapest flight

$817
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Washington Dulles Airport to Phnom Penh

When to book flights from Dulles Intl to Phnom Penh

Are your dates flexible? Find out the best times to travel from Dulles Intl to Phnom Penh 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 Washington Dulles Airport to Phnom Penh flights

  • Which flight options do I have on this route?

    When flying from Washington to Phnom Penh, several airlines offer flights on this route with one or more layovers. Qatar Airways, Emirates, Cathay Pacific, Turkish Airlines, China Eastern Airlines, Korean Air, and Singapore Airlines provide connecting flights through their hub cities.

  • What airline from Washington Dulles Airport to Phnom Penh is ideal for someone with special needs?

    Cathay Pacific, Korean Air, Qatar Airways, and United Airlines are ideal airlines for passengers traveling with special needs. These airlines offer dedicated services such as mobility aids, escort through the airport, wheelchair assistance, and trained cabin crew to assist special-needs passengers. Passengers that require special assistance during their flight should inform the respective airline in advance.

  • What is the quickest way to get downtown from Phnom Penn International Airport?

    The quickest way to get downtown from Phnom Penn International Airport is through a taxi or ride-hailing service. Passengers getting off at this airport can get to taxi stands after exiting the arrivals area at the airport. Alternatively, you can book a ride downtown through Grab or PassApp the most popular app-based services at Phnom Penh International Airport available for travelers.

  • Which airline suits families traveling from Washington Dulles Airport to Phnom Penh?

    If you are flying from Washington Dulles Airport to Phnom Penh with your family, consider booking your flight with Singapore Airlines. This airline offers dedicated services and amenities, such as priority boarding for families with young children, activity packs, special meals, and entertainment for kids. Flying with this airline guarantees you and your kids an enjoyable and comfortable trip from Washington to Phnom Penh.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Phnom Penh was $817 for a one-way ticket and $1,143 for a round-trip.

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

    Yes, you’ll need a passport to travel to Phnom Penh from Washington Dulles Airport.

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

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Phnom Penh, also known as Phnom Penh Pochentong.

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

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

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

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

  • What is the most popular layover when flying to Phnom Penh from Washington Dulles Airport?

    Incheon is the most popular layover city among KAYAK users traveling from Washington Dulles Airport to Phnom Penh.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Phnom Penh are Korean Air and Singapore Airlines. With an average price for the route of $1,673 and an overall rating of 8.5, Korean Air is the most popular choice. Singapore Airlines is also a great choice for the route, with an average price of $1,239 and an overall rating of 8.2.

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

    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 Washington Dulles Airport to Phnom Penh.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh from Washington Dulles Airport 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 Washington Dulles Airport to Phnom Penh?

    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 Phnom Penh with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and PNH 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 Washington Dulles Airport to Phnom Penh?

    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 Phnom Penh from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from IAD to Phnom Penh

  • When flying from Washington to Phnom Penh, passengers fly from Washington Dulles Airport (IAD). This airport is the main international airport located about 26 miles from downtown Washington DC thus making it more convenient for you if you travel from Washington Dulles Airport (IAD) to Phnom Penh (PNH). Passengers going to Washington Dulles Airport can use Metro bus services for routes 5A, 5B, and 5C that depart from various tops along L'Enfant Plaza and Rosslyn.
  • Passengers flying from Washington, D.C., to Phnom Penh, Cambodia land at Phnom Penh International Airport. This airport is the main international airport serving Phnom Penh and is approximately 7 miles from the city center.
  • Those arriving at Phnom Penh International Airport late at night can consider staying at a hotel nearby. These include Phnom Penh Hotel, Rambutan Resort, and The Pavilion Hotel. The hotels offer complimentary shuttle services to and from the airport.
  • If you have an early morning flight from Washington to Phnom Penh, consider staying at a nearby hotel. Holiday Inn Washington-Dulles International Airport is a suitable hotel that offers complimentary shuttle services to and from the airport. Other hotels include Hyatt Regency Dulles and Hilton Washington Dulles Airport.
  • Cathay Pacific is the ideal environment-friendly airline on this flight route. The airline uses fuel-efficient aircraft and has invested in biofuel research. The airline also has environmentally friendly initiatives such as recycling, minimizing waste, and supporting carbon offset programs.
See more tips

Top 4 airlines serving from Dulles Intl to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Phnom Penh. 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 Dulles Intl to Phnom Penh? 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.
8.5
Korean AirOverall score based on 1181 reviews
8.8Crew
8.6Boarding
8.2Entertainment
8.2Food
8.3Comfort
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

On time and flight crew are always so happy to help and always smiling unlike other airlines.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

It was a great flight Food was great Crew was spectacular

They made me check my carry on even though there was room We un boarded in a strange way but overall it was good

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

Cabin Crew always friendly and helpful. Seating cramped - foul smelling from toilets, high risk of disease. Guard personal property such as expensive sunglasses Coffee always awful and cold Meal trays toddler sized Not worth the extra cost to fly SQ - use a budget airline, same if not better experience

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

Every thing was fine. Some ild classical Hindi movies should be add

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

Excellent will be flying again in May with Qatar. to Botswana.

1st time with. Etihad Airways and it was amazing from check in to crew. Great flight.

My wife and I were upgraded to Business Class on our Dublin-Abu-Dhabi flight on the 22nd of January. Being served by "Mariyan" (not too sure about her name, she's from Tunisia) was the real highlight of our flight, she deserves to be working with etihad. We are looking forward to the next upgrade as we are flying back to Dublin on February 01, 2024. If I am not mistaken we have just reached GOLD status as Etihad Guests.

Eine Toilette der Business Class war gesperrt und somit nicht benutzbar.

One thing is very important is you people not giving seat arrangement together to couple, senior citizen. You have to take care of senior citizen. Do not look about money. Money is not important everywhere. Make relationship strong is very very important. I like Etiyad air line out of all air line. Food was hot and delicious. Air hostess gave very good service, nice attitude, very good behaviour. I gave 10 out of 10 marks. Thanks Jivraj

Entertainment did not work from flight from Abu Dhabi to Kolkata. Emirates has a much better flight in that sector.

1.Aircraft Comfort: The aircraft type was quite small with non-reclining, cramped seats that significantly lacked comfort. 2.In-flight Entertainment: There was no provision of in-flight entertainment screens or Wi-Fi for the majority of the flight. 3.Boarding Process at New Abu Dhabi Airport: Despite the move to a new airport, which promised enhanced experiences, the use of buses instead of jet bridges did not meet expectations, causing inconvenience. 4.Gate Change Communication: A last-minute gate change was poorly communicated, resulting in a long and difficult walk.

Very unfriendly team. It was very difficult to get a cup of coffee. Legroom was extremely small. Old, dilapidated plane.

Ripped off and broken seats in Business class. Seats stink and need to request the staff for additional bedsheets. Crew if very friendly though

Boarding was quick and efficient. Ground staff were pleasant and courteous. Food was tasty, portions were good for me. Food containers kept slipping on the tray. Tray would look better with an anti-skid tray mat. I had the bulkhead seat which was very uncomfortable for couple of reasons. Aircraft is designed with no throughput to move across aisle to aisle. Passengers kept jumping over my legs to get from one side to the other to use the toilet. Secondly I had a mother and 9 month baby next to me. Mom had to hold baby for 12 hours in her lap as he did not fit into the bassinet. Half the baby was on my lap during the flight. Aircraft temperature was very cold - light attendant said it was the central cooling and nothing could be done about it. Movie selection was very poor old and outdated.

Crew member took too long time to take back leftover food plates from passenger seats. Food was nice.Easy excellent checking.Guy at checking counter was really kind and helpful.Made our checking very quickly. Leftover food should be taken back ASAP. Because in economy class passanger have narrow space . In the long journey like this, passanger have difficulties to sit with the plates.overall experience was good.

Book cheap flights from Washington, D.C. to Phnom Penh

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Phnom Penh found on KAYAK in the last 72 hours.
5/28Tue
3 stops
50h 10mIAD-PNH
$817
7/25Thu
1 stopKorean Air
21h 30mIAD-PNH
$951
7/25Thu
2 stops
28h 34mIAD-PNH
$954
6/24Mon
3 stops
54h 05mIAD-PNH
$968
5/28Tue
2 stopsEtihad Airways
33h 35mIAD-PNH
$1,041
5/29Wed
2 stops
36h 00mIAD-PNH
$1,049
5/30Thu
3 stops
58h 45mIAD-PNH
$1,062
7/25Thu
3 stopsSingapore Airlines
42h 55mIAD-PNH
$1,084
5/29Wed
3 stops
34h 45mIAD-PNH
$1,085
5/30Thu
2 stopsEtihad Airways
33h 35mIAD-PNH
$1,187

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Washington Dulles Airport - Phnom Penh Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

Phnom Penh (PNH)Cambodia

Return flight deals:

Phnom Penh - Washington Dulles Airport

Cabin classes:

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