DCA - PNH

$569 Find Cheap Flights from Reagan Washington National Airport to Phnom Penh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Phnom Penh departing on 9/15. 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 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
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Cheap Flights from Reagan-National to Phnom Penh (DCA-PNH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Phnom Penh

Fri, Aug 15 - Fri, Aug 29
China Airlines Logo
9:59 am - 9:50 amDCA-PNH
36h 51m2 stops
China Airlines Logo
10:50 am - 8:59 pmPNH-DCA
45h 09m2 stops
$1,071China Airlines
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Wed, Sep 17 - Wed, Oct 15
China Airlines Logo
8:59 am - 9:50 amDCA-PNH
37h 51m2 stops
China Airlines Logo
10:50 am - 9:14 pmPNH-DCA
45h 24m2 stops
$1,132China Airlines
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Wed, Nov 5 - Sun, Nov 16
Asiana Airlines Logo
6:53 pm - 10:55 pmDCA-PNH
40h 02m2 stops
Asiana Airlines Logo
11:55 pm - 8:00 pmPNH-DCA
56h 05m2 stops
$1,171Asiana Airlines
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Wed, Nov 5 - Sun, Nov 16
Singapore Airlines Logo
9:59 am - 8:35 amDCA-PNH
34h 36m2 stops
Singapore Airlines Logo
9:35 am - 8:00 pmPNH-DCA
46h 25m2 stops
$1,181Singapore Airlines
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Thu, Oct 23 - Thu, Nov 13
Asiana Airlines Logo
9:59 am - 10:55 pmDCA-PNH
49h 56m2 stops
Asiana Airlines Logo
11:55 pm - 8:00 pmPNH-DCA
32h 05m2 stops
$1,191Asiana Airlines
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Fri, Oct 24 - Thu, Nov 6
Philippine Airlines Logo
8:19 am - 12:15 amDCA-PNH
28h 56m2 stops
Philippine Airlines Logo
1:15 am - 8:48 pmPNH-DCA
31h 33m2 stops
$1,231Philippine Airlines
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Wed, Sep 17 - Tue, Oct 14
Philippine Airlines Logo
5:30 pm - 12:15 amDCA-PNH
43h 45m2 stops
Philippine Airlines Logo
1:15 am - 8:59 pmPNH-DCA
30h 44m2 stops
$1,294Philippine Airlines
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Fri, Oct 24 - Fri, Nov 7
Cathay Pacific Logo
6:38 am - 5:20 pmDCA-PNH
23h 42m2 stops
Cathay Pacific Logo
7:05 pm - 4:25 pmPNH-DCA
33h 20m2 stops
$1,375Cathay Pacific
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Fri, Aug 15 - Fri, Aug 29
Singapore Airlines Logo
9:59 am - 1:10 pmDCA-PNH
40h 11m3 stops
Singapore Airlines Logo
2:05 pm - 8:59 pmPNH-DCA
41h 54m2 stops
$1,381Singapore Airlines
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Sat, Oct 25 - Fri, Nov 7
Cathay Pacific Logo
7:28 pm - 10:25 amDCA-PNH
27h 57m2 stops
Cathay Pacific Logo
7:05 pm - 9:29 amPNH-DCA
26h 24m2 stops
$1,609Cathay Pacific
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KAYAK's insights & trends for Reagan-National to Phnom Penh flights

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

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Reagan Washington National Airport to Phnom Penh were found on China Airlines ($1,071) and Asiana Airlines ($1,171).

Find deals

Good to know

Cheapest flight$569
Flight from Reagan Washington National Airport to Phnom Penh

When to book flights from Reagan-National to Phnom Penh

Are your dates flexible? Find out the best times to travel from Reagan-National 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 Reagan Washington National Airport to Phnom Penh flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Phnom Penh was $569 for a one-way ticket and $1,071 for a round-trip.

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

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

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

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

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

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

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

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

  • How does KAYAK find such low prices on flights from Reagan Washington National 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 Reagan Washington National Airport to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Reagan-National 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 Reagan-National 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.
8.2
Asiana AirlinesOverall score based on 452 reviews
8.0Comfort
8.5Crew
8.4Boarding
7.8Entertainment
8.0Food
Airline reviews

Love flying Asiana. Been using it for over a decade now.

10.0 ExcellentJames, Jul 2025LAX - ICN
Read more Asiana Airlines reviews

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The boarding process was good. The toilet could be better maintained.

Everything you need to know for your flight from Reagan-National to Phnom Penh

Information on your arrival and departure airports

Reagan Washington National Airport (DCA)
Phnom Penh (PNH)

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