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WAS - PNH

Find cheap flights from Washington, D.C. to Phnom Penh from $795

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Phnom Penh departing on 6/24. 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
Sat 6/8
Sat 6/15

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 43,895,468 times on KAYAK, and here is why:

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Cheap flight deals from Washington, D.C. to Phnom Penh (WAS-PNH)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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
7:45 pm - 10:15 amDCA-PNH
27h 30m2 stops
11:25 am - 9:29 amPNH-DCA
33h 04m2 stops
$1,054
Find Deal
Mon, Sep 16 - Wed, Sep 25
9:00 am - 10:25 amIAD-PNH
37h 25m2 stops
11:45 am - 3:00 pmPNH-IAD
39h 15m2 stops
$1,054
Find Deal
Mon, Nov 4 - Mon, Dec 16
7:45 pm - 10:15 amDCA-PNH
51h 30m2 stops
6:30 pm - 11:00 amPNH-DCA
51h 30m2 stops
$1,258Cathay Pacific
Find Deal
Sun, Sep 15 - Sat, Sep 21
1:05 pm - 5:10 pmDCA-PNH
41h 05m2 stops
11:45 am - 6:59 pmPNH-DCA
43h 14m2 stops
$1,336Cathay Pacific
Find Deal
Fri, Oct 4 - Mon, Nov 4
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
11:50 am - 10:25 pmIAD-PNH
22h 35m1 stop
11:45 pm - 9:50 amPNH-IAD
22h 05m1 stop
$1,483Korean Air
Find Deal
Mon, Nov 4 - Mon, Dec 16
5:27 pm - 1:05 pmIAD-PNH
56h 38m3 stops
6:25 pm - 11:59 pmPNH-IAD
40h 34m2 stops
$1,492Singapore Airlines
Find Deal
Tue, Oct 1 - Mon, Oct 14
10:55 am - 4:15 pmIAD-PNH
42h 20m2 stops
11:10 am - 8:45 amPNH-IAD
56h 35m2 stops
$1,872Qatar 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 Washington, D.C. to Phnom Penh - Travel Insights & Trends

Get data-powered insights and trends into flights from Washington, D.C. 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, D.C. to Phnom Penh?

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

What is the cheapest month to fly from Washington, D.C. 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. 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. 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. 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. 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. 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, D.C. 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, D.C. were found on Cathay Pacific ($857) and Korean Air ($951), and the lowest round-trip tickets were found on Cathay Pacific ($1,258) and Air Canada ($1,326).

Good to know

Low season

March

High season

May

Cheapest flight

$795
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Baltimore to Phnom Penh

When to book flights from Washington, D.C. to Phnom Penh

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Phnom Penh

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Phnom Penh was $795 for a one-way ticket and $1,054 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Phnom Penh?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Phnom Penh.

  • Which airports will I be using when flying from Washington, D.C. to Phnom Penh?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Phnom Penh. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Phnom Penh Pochentong.

  • Which aircraft models fly most regularly from Washington, D.C. to Phnom Penh?

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

  • Which airline alliances offer flights from Washington, D.C. to Phnom Penh?

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

  • What is the most popular layover when flying to Phnom Penh from Washington, D.C.?

    Incheon is the most popular layover city among KAYAK users traveling from Washington, D.C. 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 $1,756 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 $1,435 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. 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, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Washington, D.C. 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 Washington, D.C. 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
8.3Comfort
8.2Food
8.6Boarding
8.2Entertainment
8.8Crew
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

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.

Going through security a second time to get on the next Korean Air flight was utterly ridiculous and unnecessary. We were in a International secure area.

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

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

All in all the flight was good. Love the fact that for airline food it was piping hot

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.

Awesome as always. I wish though the cabin for premium was upgraded.... Same old sane old :(

I requested an aisle seat and got a middle seat The flight gate was changed and the flight was delayed

It was a great flight Food was great Crew was spectacular

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

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

Wonderful service, planes and interior in great condition, very pleasant experience

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

The overall flight went well and the aircrew was pleasant.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

One of the worst flight in business class by qatar airways and I’m no stranger with qatar airways businesses class, I travelled with the extensively in the past 12 years

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.

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

Etihad broke my suitcase Also over charged me for luggage

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

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.

Crew did not cooperate… I just asked water twice for one crew member and she didn’t get anything.. and when I asked other crew member he gave me water and he was not respectful.. I kept Hindu non veg meal chicken .. when I get my turn chicken was not provided and then they gave me veg paneer and green peas curry which I don’t like..

Sits are very uncomfortable and food quality should be improved. Alcohol you have to ask and wait for more then 1/2 hrs. Don’t feel like to travel in Etihad. It was 1st time we traveled in Etihad now we decided we don’t want to travel in Etihad.

Very very bad service very tight seats never ever flying with Etihad again

The flight was small and was not cool very bad

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.
6/24Mon
3 stops
58h 30mBWI-PNH
$795
7/25Thu
2 stopsCathay Pacific
42h 36mBWI-PNH
$857
7/25Thu
2 stops
37h 11mDCA-PNH
$928
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
7/25Thu
3 stopsSingapore Airlines
36h 10mDCA-PNH
$1,084
7/25Thu
3 stopsSingapore Airlines
42h 55mIAD-PNH
$1,084
6/24Mon
3 stopsQatar Airways
57h 30mDCA-PNH
$1,361
6/24Mon
1 stopKorean Air
21h 45mIAD-PNH
$2,202

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Flights to Phnom Penh

Destination:

Phnom Penh (PNH)Cambodia

Return flight deals:

Phnom Penh - Washington, D.C.

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