$512 Cheap flights from Washington Dulles Intl. to Phnom Penh Intl. (IAD to PNH)

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Find The Best Dates To Fly from Washington Dulles Intl. to Phnom Penh Intl.

Compare Flight Prices from Washington to Phnom Penh

Affordable Airfare Tickets from IAD to PNH Airport

The cheapest flights to Phnom Penh Intl. found within the past 7 days were $1,053 round trip and $512 one way. Prices and availability subject to change. Additional terms may apply.

Wed, May 7 - Sun, May 11
IAD
Washington
PNH
Phnom Penh
$1,053 Roundtrip, found 3 days ago
$1,053
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, May 7 from Washington to Phnom Penh, returning Sun, May 11, priced at $1,053 found 3 days ago
Mon, Apr 28 - Wed, May 21
IAD
Washington
PNH
Phnom Penh
$1,060 Roundtrip, found 9 hours ago
$1,060
Roundtrip
found 9 hours ago
Select Cathay Pacific flight, departing Mon, Apr 28 from Washington to Phnom Penh, returning Wed, May 21, priced at $1,060 found 9 hours ago
Tue, May 6 - Tue, May 13
IAD
Washington
PNH
Phnom Penh
$1,070 Roundtrip, found 3 days ago
$1,070
Roundtrip
found 3 days ago
Select Cathay Pacific flight, departing Tue, May 6 from Washington to Phnom Penh, returning Tue, May 13, priced at $1,070 found 3 days ago
Thu, Aug 14 - Mon, Aug 18
IAD
Washington
PNH
Phnom Penh
$1,076 Roundtrip, found 6 days ago
$1,076
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Aug 14 from Washington to Phnom Penh, returning Mon, Aug 18, priced at $1,076 found 6 days ago
Mon, Feb 2 - Mon, Feb 23
IAD
Washington
PNH
Phnom Penh
$1,356 Roundtrip, found 9 hours ago
$1,356
Roundtrip
found 9 hours ago
Select Singapore Airlines flight, departing Mon, Feb 2 from Washington to Phnom Penh, returning Mon, Feb 23, priced at $1,356 found 9 hours ago
Tue, May 6 - Tue, May 13
IAD
Washington
PNH
Phnom Penh
$1,365 Roundtrip, found 3 days ago
$1,365
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Tue, May 6 from Washington to Phnom Penh, returning Tue, May 13, priced at $1,365 found 3 days ago
Tue, Oct 7 - Tue, Oct 28
IAD
Washington
PNH
Phnom Penh
$1,370 Roundtrip, found 2 days ago
$1,370
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Tue, Oct 7 from Washington to Phnom Penh, returning Tue, Oct 28, priced at $1,370 found 2 days ago
Tue, Sep 2 - Tue, Sep 23
IAD
Washington
PNH
Phnom Penh
$1,391 Roundtrip, found 2 days ago
$1,391
Roundtrip
found 2 days ago
Select Malaysia Airlines flight, departing Tue, Sep 2 from Washington to Phnom Penh, returning Tue, Sep 23, priced at $1,391 found 2 days ago
Tue, Feb 10 - Tue, Mar 10
IAD
Washington
PNH
Phnom Penh
$1,583 Roundtrip, just found
$1,583
Roundtrip
just found
Select Korean Air flight, departing Tue, Feb 10 from Washington to Phnom Penh, returning Tue, Mar 10, priced at $1,583 just found
Mon, Nov 3 - Tue, Dec 9
IAD
Washington
PNH
Phnom Penh
$1,594 Roundtrip, found 2 days ago
$1,594
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Nov 3 from Washington to Phnom Penh, returning Tue, Dec 9, priced at $1,594 found 2 days ago

Frequently asked questions

How long is the flight from IAD to PNH?
The journey from IAD to PNH usually lasts about 19 hours and 55 minutes. You’ll have plenty of time to rest on this long-haul flight, but make sure you bring a top-quality neck pillow if you really want to get comfortable.
What is the flight distance from Washington Dulles Intl. Airport (IAD) to PNH?
With 9,000 mi between Washington Dulles Intl. Airport (IAD) and PNH, you’ll have more than enough time to kick back and relax. Make use of the in-flight entertainment, do some puzzles or catch up on some shut-eye.
What airlines fly from Dulles Intl. Airport to PNH?
As it stands, no single airline flies direct to PNH from IAD. Touching down there will involve at least one stopover. Book your ticket ahead of time to walk away with the best connections and price.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Washington to Phnom Penh

 

Traveling From
Washington Dulles Intl.
Traveling To
Phnom Penh Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$1,053

Route Info

Flight path for flights from Washington Dulles International Airport to Phnom Penh International Airport.


Origin:
IAD - Washington Dulles International Airport
Destination:
PNH - Phnom Penh International Airport
Distance:
10,472.00 miles


Discover our best flights from Washington IAD to Phnom Penh PNH. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Washington IAD to Phnom Penh PNH at the right price  

Airfares to Phnom Penh PNH from Washington IAD currently cost between $1,053 and $1,594. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Washington IAD to Phnom Penh PNH 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Washington IAD to Phnom Penh PNH on Travelocity starting at $512. Prices and availability subject to change. Additional terms may apply. 

 

Get to Phnom Penh PNH from Washington IAD quicker with direct flights. 

Get to Phnom Penh faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to PNH from IAD to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Washington IAD to Phnom Penh PNH

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to PNH from IAD. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Washington IAD to Phnom Penh PNH today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Washington IAD to Phnom Penh PNH. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Phnom Penh PNH from Washington IAD 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to PNH from IAD have this option.  

 

Travel with confidence when you book flights to Phnom Penh PNH from Washington IAD with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.