DCA - PNH

$441 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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Flight Deals

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

Wed, Nov 5 - Sun, Nov 16
Asiana Airlines Logo
9:59 am - 10:55 pmDCA-PNH
48h 56m2 stops
Asiana Airlines Logo
11:55 pm - 8:00 pmPNH-DCA
32h 05m2 stops
$1,094Asiana Airlines
Find Deal
Sat, Nov 1 - Thu, Dec 4
 Logo
5:00 pm - 10:55 pmDCA-PNH
42h 55m2 stops
 Logo
11:55 pm - 8:00 pmPNH-DCA
32h 05m2 stops
$1,111
Find Deal
Thu, Sep 4 - Sun, Oct 5
 Logo
9:40 am - 10:55 pmDCA-PNH
26h 15m2 stops
 Logo
11:55 pm - 10:34 pmPNH-DCA
33h 39m2 stops
$1,125
Find Deal
Thu, Sep 4 - Sun, Oct 5
Asiana Airlines Logo
8:59 am - 10:55 pmDCA-PNH
50h 56m2 stops
Asiana Airlines Logo
11:55 pm - 9:14 pmPNH-DCA
56h 19m2 stops
$1,137Asiana Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 16
EVA Air Logo
9:59 am - 11:25 amDCA-PNH
37h 26m2 stops
EVA Air Logo
12:45 pm - 8:00 pmPNH-DCA
43h 15m2 stops
$1,217EVA Air
Find Deal
Wed, Oct 1 - Wed, Oct 22
EVA Air Logo
8:59 am - 11:15 amDCA-PNH
39h 16m2 stops
EVA Air Logo
12:35 pm - 9:14 pmPNH-DCA
43h 39m2 stops
$1,289EVA Air
Find Deal
Fri, Oct 3 - Fri, Oct 10
Singapore Airlines Logo
8:59 am - 1:10 pmDCA-PNH
41h 11m2 stops
Singapore Airlines Logo
9:35 am - 9:14 pmPNH-DCA
46h 39m2 stops
$1,405Singapore Airlines
Find Deal
Wed, Oct 8 - Sat, Oct 18
Singapore Airlines Logo
9:59 am - 8:40 amDCA-PNH
35h 41m2 stops
Singapore Airlines Logo
2:05 pm - 9:14 pmPNH-DCA
42h 09m2 stops
$1,447Singapore Airlines
Find Deal
Sun, Dec 21 - Mon, Jan 19
United Airlines Logo
5:00 pm - 10:55 pmDCA-PNH
65h 55m3 stops
United Airlines Logo
11:55 pm - 9:13 pmPNH-DCA
33h 18m2 stops
$3,376United Airlines
Find Deal
Fri, Dec 19 - Tue, Jan 20
United Airlines Logo
5:00 pm - 10:55 pmDCA-PNH
41h 55m3 stops
United Airlines Logo
11:55 pm - 9:13 pmPNH-DCA
33h 18m2 stops
$6,716United Airlines
Find Deal
Booking Insights

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 Asiana Airlines ($1,094) and EVA Air ($1,217).

Good to know

Cheapest flight$441
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 $441 for a one-way ticket and $1,094 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 476 reviews
8.1Comfort
8.1Food
8.6Crew
7.8Entertainment
8.4Boarding
Airline reviews

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

8.0 ExcellentJo, Aug 2025PVG - ICN
Read more Asiana Airlines reviews

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

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.

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.

We took business class, It was comfortable and I was able to sleep.

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

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