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Phnom Penh

$542+ 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PNH
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Round-trip from

$839
(FlightHub)

One-way from

$542
(FlightHub)
From Washington to Phnom Penh Pochentong
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One-way flight from Washington to Phnom Penh Pochentong
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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 December 18, 2024.

This oojo deal was found by Cheapflights users on 12/17. 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 12/3112:10 amSEA - PNH
2 stops23h 15mMultiple Airlines
Thu 1/165:20 pmPNH - SEA
1 stop15h 55mMultiple Airlines
Deal found 12/17$1,257
This oojo deal was found by Cheapflights users on 12/17. 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.
Sun 12/2912:10 amSEA - PNH
1 stop20h 15mEVA Air
Tue 1/1412:45 pmPNH - SEA
1 stop20h 25mEVA Air
Deal found 12/17$1,314
This Booking.com deal was found by Cheapflights users on 12/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:10 amSEA - PNH
1 stop25h 05mChina Airlines
Thu 1/165:20 pmPNH - SEA
1 stop15h 55mChina Airlines
Deal found 12/17$1,359
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Mon 12/307:20 amSEA - PNH
2 stops24h 55mChina Eastern
Sun 1/1212:15 amPNH - SEA
2 stops30h 39mChina Eastern
Deal found 12/17$1,570
This FlightHub deal was found by Cheapflights users on 12/17. 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 12/3112:45 pmSEA - PNH
1 stop19h 35mAsiana Airlines
Mon 1/1312:30 amPNH - SEA
1 stop25h 25mAsiana Airlines
Deal found 12/17$1,610
This ScholarTrip deal was found by Cheapflights users on 12/17. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2511:00 amSEA - PNH
1 stop20h 25mKorean Air
Tue 1/2111:45 pmPNH - SEA
1 stop24h 15mKorean Air
Deal found 12/17$1,694
This oojo deal was found by Cheapflights users on 12/17. 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.
Sun 12/229:40 pmSEA - PNH
2 stops52h 55mSingapore Airlines
Sun 1/266:55 pmPNH - SEA
2 stops56h 23mSingapore Airlines
Deal found 12/17$2,046
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/254:05 pmSEA - PNH
2 stops50h 45mQatar Airways
Tue 1/215:10 pmPNH - SEA
3 stops42h 13mQatar Airways
Deal found 12/17$2,234
This oojo deal was found by Cheapflights users on 12/18. 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 12/2411:23 amSEA - PNH
2 stops45h 52mPhilippine Airlines
Sat 1/181:05 amPNH - SEA
1 stop32h 05mPhilippine Airlines
Deal found 12/18$2,239

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Tue 4/8

2:00 pm-10:55 pm

1 stop18h 55m

Phnom Penh Pochentong

Thu 5/8

11:55 pm-12:35 pm

1 stop26h 40m

$839

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Thu 3/6

12:45 pm-9:30 am

2 stops29h 45m

Phnom Penh Pochentong

Fri 3/21

12:30 am-11:55 am

1 stop25h 25m

$855

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Thu 1/23

11:00 am-10:25 pm

1 stop20h 25m

Phnom Penh Pochentong

Thu 1/30

11:45 pm-9:00 am

1 stop24h 15m

$868

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Mon 3/31

1:10 am-9:50 am

1 stop18h 40m

Phnom Penh Pochentong

Thu 5/1

5:10 pm-7:30 pm

1 stop16h 20m

$938

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Sun 2/2

8:40 am-12:45 pm

1 stop37h 05m

Phnom Penh Pochentong

Mon 2/10

9:35 am-10:00 am

2 stops39h 25m

$963

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Sun 2/16

6:00 am-11:15 pm

2 stops26h 15m

Phnom Penh Pochentong

Mon 3/3

12:15 am-3:25 pm

2 stops30h 10m

$990

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Mon 2/24

7:10 am-11:15 pm

2 stops25h 05m

Phnom Penh Pochentong

Sun 3/9

12:15 am-4:00 pm

2 stops29h 45m

$1,011

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Tue 1/21

11:30 pm-11:25 am

1 stop20h 55m

Phnom Penh Pochentong

Tue 2/25

12:45 pm-6:10 pm

1 stop20h 25m

$1,053

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Tue 4/8

9:47 am-10:55 pm

2 stops23h 08m

Phnom Penh Pochentong

Thu 5/8

11:55 pm-8:49 pm

2 stops34h 54m

$1,053

PortlandPhnom Penh

PDX - PNH

PDXPNH

Portland

Thu 4/3

6:00 am-8:40 am

2 stops36h 40m

Phnom Penh Pochentong

Sat 4/19

2:05 pm-5:05 pm

2 stops41h 00m

$1,170

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 22 results
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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 $1,014). Flying from State of Washington to Phnom Penh in June is currently the most expensive (average of $1,582). 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 December 18, 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 December 18, 2024.
Get a feel of what it's like to fly with Asiana Airlines, China Airlines and Singapore Airlines 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.
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very good
1,269 reviews
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Korean Air
8.4
Very good
1,018 reviews
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Asiana Airlines
8.3
Very good
477 reviews
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

China Airlines
8.3
Very good
754 reviews
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Singapore Airlines
8.1
Very good
1,329 reviews
EVA Air
8.4
Very good
1,269 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

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 China Eastern. According to our data, you can fly for as low as $542. Users have also found prices from $730 and $735 on Asiana Airlines 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 $1,014). Flying from State of Washington to Phnom Penh in June is currently the most expensive (average of $1,582). 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.

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Alternative routes for Washington to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$796Average$1,074FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$823Average$1,008FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$877Average$1,024FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$892Average$1,086FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,044Average$1,304FlexibilityNo cancel feeOn-time74%
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