HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phnom Penh

$493+ Cheap flights from Washington to Phnom Penh (PNH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PNH
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Phnom Penh with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Washington to Phnom Penh

Cheapest flights from Washington to Phnom Penh
Explore the most affordable flight options available from Washington to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2612:10 amSEA - PNH
1 stop20h 15mEVA Air
Tue 12/312:45 pmPNH - SEA
1 stop20h 25mEVA Air
Deal found 11/19$1,059
This China Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2512:10 amSEA - PNH
1 stop19h 25mChina Airlines
Thu 11/285:20 pmPNH - SEA
1 stop15h 55mChina Airlines
Deal found 11/19$1,066
This Korean Air deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2511:00 amSEA - PNH
1 stop20h 25mKorean Air
Tue 12/311:45 pmPNH - SEA
1 stop24h 15mKorean Air
Deal found 11/19$1,077
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2612:10 amSEA - PNH
1 stop20h 15mMultiple Airlines
Tue 12/38:55 pmPNH - SEA
2 stops36h 15mMultiple Airlines
Deal found 11/19$1,128
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2012:45 pmSEA - PNH
1 stop19h 35mAsiana Airlines
Tue 11/2612:30 amPNH - SEA
1 stop25h 25mAsiana Airlines
Deal found 11/19$1,164
This FlightHub deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:40 amSEA - PNH
1 stop37h 05mSingapore Airlines
Wed 12/111:45 pmPNH - SEA
1 stop32h 25mSingapore Airlines
Deal found 11/20$1,218
This Orbitz deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2810:59 amPDX - PNH
2 stops33h 26mMultiple Airlines
Wed 1/1512:45 pmPNH - PDX
2 stops37h 22mMultiple Airlines
Deal found 11/19$1,284
This oojo deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2010:35 pmSEA - PNH
1 stop34h 40mPhilippine Airlines
Sat 12/71:05 amPNH - SEA
1 stop32h 05mPhilippine Airlines
Deal found 11/20$1,327
This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/277:05 amSEA - PNH
2 stops25h 10mChina Eastern
Mon 12/212:15 amPNH - SEA
2 stops48h 50mChina Eastern
Deal found 11/19$1,379
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2712:43 amPDX - PNH
3 stops47h 42mQatar Airways
Wed 1/155:10 pmPNH - PDX
3 stops44h 23mQatar Airways
Deal found 11/19$2,566
This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2712:59 amPDX - PNH
2 stops30h 26mKorean Air
Wed 1/1511:45 pmPNH - PDX
2 stops31h 48mKorean Air
Deal found 11/19$5,878

Find flights from Washington to Phnom Penh within your budget

Customize your flight search to find flights from Washington to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Thu 4/3

2:00 pm-9:30 am

2 stops29h 30m

Phnom Penh Pochentong

Sun 4/27

9:10 pm-12:35 pm

2 stops29h 25m

$995

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Fri 2/7

12:45 pm-11:20 pm

1 stop19h 35m

Phnom Penh Pochentong

Sat 2/22

12:30 am-10:55 am

1 stop25h 25m

$1,007

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Sat 3/8

5:59 pm-12:45 pm

2 stops27h 46m

Phnom Penh Pochentong

Sat 3/22

9:35 am-8:10 am

1 stop36h 35m

$1,046

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Wed 1/22

6:20 am-10:25 pm

2 stops25h 05m

Phnom Penh Pochentong

Mon 2/10

11:45 pm-9:00 am

1 stop24h 15m

$1,047

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Sat 2/8

12:10 am-4:15 pm

1 stop25h 05m

Phnom Penh Pochentong

Mon 2/24

5:20 pm-6:15 pm

1 stop15h 55m

$1,060

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Wed 3/12

1:10 am-11:25 am

1 stop20h 15m

Phnom Penh Pochentong

Sun 3/30

12:35 pm-7:30 pm

1 stop20h 55m

$1,073

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 4/8

6:00 am-10:55 pm

2 stops26h 55m

Phnom Penh Pochentong

Thu 5/8

11:55 pm-6:34 pm

2 stops32h 39m

$1,131

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Thu 1/16

7:02 am-12:45 pm

3 stops38h 43m

Phnom Penh Pochentong

Fri 1/31

6:45 pm-11:00 am

2 stops31h 15m

$1,277

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 4/8

1:50 pm-4:00 pm

3 stops36h 10m

Phnom Penh Pochentong

Thu 5/8

5:30 pm-8:49 pm

3 stops41h 19m

$1,361

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 4/8

6:00 am-11:15 pm

2 stops27h 15m

Phnom Penh Pochentong

Wed 5/7

12:10 am-4:09 pm

2 stops29h 59m

$1,681

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 18 results
1
2

Best time to book a flight from Washington to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington to Phnom Penh

Get recent, data-driven insights about flights from Washington to Phnom Penh including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to Phnom Penh?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Phnom Penh (average of $1,012). Flying from State of Washington to Phnom Penh in June is currently the most expensive (average of $1,583). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to PNH?

Find hourly flight availability from Washington to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Phnom Penh as you normally would.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated November 20, 2024.
Get a feel of what it's like to fly with Qatar Airways, China Eastern and Korean Air from Washington to Phnom Penh by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,024 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

EVA Air
8.4
Very good
1,308 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Asiana Airlines
8.3
Very good
476 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

China Airlines
8.3
Very good
778 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Emirates
8.1
Very good
3,486 reviews
Korean Air
8.5
Very good
1,024 reviews

Boarding

8.5

Overall

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Food

8.1

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Related info for your journey

Find useful and relevant information for your journey from Washington to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Phnom Penh from Washington?

    Located just 5.0 mi from the city center, Phnom Penh Pochentong (PNH) is the airport most travelers will use when flying to Phnom Penh from Washington.

  • What are the cheapest airlines to fly from State of Washington to Phnom Penh one-way?

    For one-way options, check prices for Asiana Airlines. According to our data, you can fly for as low as $493. Users have also found prices from $645 and $649 on Korean Air and EVA Air, respectively.

  • What are the most popular routes from State of Washington to Phnom Penh?

    The most popular route from State of Washington to Phnom Penh is Seattle/Tacoma Intl - Phnom Penh Pochentong. You may also consider Portland - Phnom Penh Pochentong or Spokane - Phnom Penh Pochentong.

  • Can I find deals for flights from Washington to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Washington to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Phnom Penh.

  • Can I find deals for business class flights from Washington to Phnom Penh?

    Yes. Cheapflights offers flight deals from Washington to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Phnom Penh?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Phnom Penh (average of $1,012). Flying from State of Washington to Phnom Penh in June is currently the most expensive (average of $1,583). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Phnom Penh flights
John F Kennedy Intl to Phnom Penh flights
Seattle to Phnom Penh flights
Boston to Phnom Penh flights
San Francisco to Phnom Penh flights
Ontario to Phnom Penh flights
Dallas/Fort Worth to Phnom Penh flights
Newark to Phnom Penh flights
LaGuardia to Phnom Penh flights
Santa Ana to Phnom Penh flights
Dulles Intl to Phnom Penh flights
Burbank to Phnom Penh flights
O'Hare Intl to Phnom Penh flights
Minneapolis to Phnom Penh flights
Hobby to Phnom Penh flights
Reagan-National to Phnom Penh flights
Baltimore to Phnom Penh flights
Love Field to Phnom Penh flights
George Bush Intcntl to Phnom Penh flights
Atlanta to Phnom Penh flights
San Jose to Phnom Penh flights
Charlotte to Phnom Penh flights
Oakland to Phnom Penh flights
Midway to Phnom Penh flights
Honolulu to Phnom Penh flights
Jacksonville to Phnom Penh flights
Portland to Phnom Penh flights
Austin to Phnom Penh flights
Salt Lake City to Phnom Penh flights
Denver to Phnom Penh flights
Sky Harbor Intl to Phnom Penh flights
Cincinnati to Phnom Penh flights
Fort Lauderdale to Phnom Penh flights
Tampa to Phnom Penh flights
Orlando to Phnom Penh flights
Oklahoma City to Phnom Penh flights
Cleveland to Phnom Penh flights
Philadelphia to Phnom Penh flights
Detroit to Phnom Penh flights
Kailua-Kona to Phnom Penh flights
Lexington to Phnom Penh flights
Kansas City to Phnom Penh flights
Santa Rosa to Phnom Penh flights
Boise to Phnom Penh flights
Las Vegas to Phnom Penh flights
Miami to Phnom Penh flights
San Diego to Phnom Penh flights
Charleston to Phnom Penh flights

Top 5 airlines flying from Washington to Phnom Penh

Discover the top 5 airlines that operate flights from Washington to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$796Average$1,074FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$877Average$1,024FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$892Average$1,087FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$893Average$1,025FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$1,046Average$1,305FlexibilityNo cancel feeOn-time74%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines