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$466+ Cheap flights from Phnom Penh (PNH) to Washington

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SEA
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Phnom Penh to Washington

Keep the following information in mind while searching for Phnom Penh to Washington flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$696
(oojo)

One-way from

$466
(oojo)

Popular in

January

Cheapest in

November

Average price

$985
Provider with most accurate pricing for Phnom Penh Pochentong-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Seattle/Tacoma Intl flights.
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From Phnom Penh Pochentong to Washington
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One-way flight from Phnom Penh Pochentong to Washington
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Phnom Penh to Washington

Cheapest flights from Phnom Penh to Washington
Explore the most affordable flight options available from Phnom Penh to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This oojo deal was found by Cheapflights users on 2/21. 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.
Sat 3/221:05 amPNH - SEA
1 stop32h 05mPhilippine Airlines
Sun 3/3011:30 pmSEA - PNH
1 stop34h 45mPhilippine Airlines
Deal found 2/21$696
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Mon 4/711:55 pmPNH - SEA
1 stop26h 35mAsiana Airlines
Thu 4/242:15 pmSEA - PNH
1 stop18h 40mAsiana Airlines
Deal found 2/21$887
This China Airlines deal was found by Cheapflights users on 2/21. 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.
Sun 3/2311:35 amPNH - SEA
1 stop21h 40mChina Airlines
Sat 3/291:10 amSEA - PNH
1 stop24h 55mChina Airlines
Deal found 2/21$992
This oojo deal was found by Cheapflights users on 2/21. 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 4/111:30 pmPNH - SEA
1 stop25h 10mKorean Air
Mon 5/512:50 pmSEA - PNH
1 stop19h 20mKorean Air
Deal found 2/21$996
This Mytrip deal was found by Cheapflights users on 2/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/239:45 amPNH - SEA
2 stops23h 25mMultiple Airlines
Sun 3/3011:30 pmSEA - PNH
1 stop34h 45mMultiple Airlines
Deal found 2/21$1,074
This Gurufare deal was found by Cheapflights users on 2/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/512:35 pmPNH - SEA
1 stop20h 15mEVA Air
Fri 4/251:30 amSEA - PNH
1 stop19h 45mEVA Air
Deal found 2/21$1,113
This oojo deal was found by Cheapflights users on 2/21. 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 4/16:55 pmPNH - SEA
2 stops35h 58mSingapore Airlines
Mon 5/56:25 pmSEA - PNH
2 stops28h 40mSingapore Airlines
Deal found 2/21$1,343
This Mytrip deal was found by Cheapflights users on 2/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/110:25 pmPNH - PDX
3 stops34h 59mMultiple Airlines
Sat 3/223:25 pmPDX - PNH
2 stops29h 00mMultiple Airlines
Deal found 2/21$1,499
This Ovago deal was found by Cheapflights users on 2/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3112:10 amPNH - SEA
2 stops30h 45mChina Eastern
Mon 5/56:05 pmSEA - PNH
2 stops39h 10mChina Eastern
Deal found 2/21$1,655
This Cathay Pacific deal was found by Cheapflights users on 2/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/46:30 pmPNH - SEA
2 stops40h 10mCathay Pacific
Wed 4/237:59 pmSEA - PNH
2 stops24h 16mCathay Pacific
Deal found 2/21$1,680
This Ovago deal was found by Cheapflights users on 2/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/512:20 amPNH - SEA
2 stops35h 23mAir China
Fri 4/255:10 pmSEA - PNH
2 stops39h 55mAir China
Deal found 2/21$1,708
This Qatar Airways deal was found by Cheapflights users on 2/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/85:40 pmPNH - SEA
3 stops54h 44mQatar Airways
Fri 4/254:30 pmSEA - PNH
2 stops33h 45mQatar Airways
Deal found 2/21$1,960

Find flights from Phnom Penh to Washington within your budget

Customize your flight search to find flights from Phnom Penh to Washington 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 February 22, 2025.

Fly from

Phnom Penh

Fly to

Washington

Route

Depart

Return

Price

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sat 3/22

1:05 am-7:10 pm

1 stop32h 05m

Seattle/Tacoma Intl

Sun 3/30

11:30 pm-12:15 am

1 stop34h 45m

$696

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Mon 4/7

11:55 pm-12:30 pm

1 stop26h 35m

Seattle/Tacoma Intl

Thu 4/24

2:15 pm-10:55 pm

1 stop18h 40m

$887

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sun 3/23

11:35 am-7:15 pm

1 stop21h 40m

Seattle/Tacoma Intl

Sat 3/29

1:10 am-4:05 pm

1 stop24h 55m

$992

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Tue 4/1

11:30 pm-10:40 am

1 stop25h 10m

Seattle/Tacoma Intl

Mon 5/5

12:50 pm-10:10 pm

1 stop19h 20m

$996

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sun 3/23

9:45 am-7:10 pm

2 stops23h 25m

Seattle/Tacoma Intl

Sun 3/30

11:30 pm-12:15 am

1 stop34h 45m

$1,074

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sat 4/5

12:35 pm-6:50 pm

1 stop20h 15m

Seattle/Tacoma Intl

Fri 4/25

1:30 am-11:15 am

1 stop19h 45m

$1,113

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Tue 4/1

6:55 pm-4:53 pm

2 stops35h 58m

Seattle/Tacoma Intl

Mon 5/5

6:25 pm-1:05 pm

2 stops28h 40m

$1,343

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Mon 3/31

12:10 am-4:55 pm

2 stops30h 45m

Seattle/Tacoma Intl

Mon 5/5

6:05 pm-11:15 pm

2 stops39h 10m

$1,655

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Fri 4/4

6:30 pm-8:40 pm

2 stops40h 10m

Seattle/Tacoma Intl

Wed 4/23

7:59 pm-10:15 am

2 stops24h 16m

$1,680

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sat 4/5

12:20 am-9:43 pm

2 stops35h 23m

Seattle/Tacoma Intl

Fri 4/25

5:10 pm-11:05 pm

2 stops39h 55m

$1,708

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 18 results
1
2

Best time to book a flight from Phnom Penh to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Phnom Penh 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 Phnom Penh to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to State of Washington (average of $238). Flying from Phnom Penh to State of Washington in July is currently the most expensive (average of $411). 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 PNH to WA?

Find hourly flight availability from Phnom Penh to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

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

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated February 22, 2025.
See what other customers who have flown with EVA Air, Korean Air and Asiana Airlines from Phnom Penh to Washington have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Korean Air
8.4
Very good
1,036 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Asiana Airlines
8.3
Very good
444 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

China Airlines
8.2
Very good
725 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Emirates
8.1
Very good
3,278 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.2

Overall

8.4

Boarding

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Washington. 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 from for flights from Phnom Penh to Washington?

    If you book a flight to Washington from Phnom Penh, you will be flying from Pochentong, which is the city’s only airport. Phnom Penh Pochentong (PNH) is located 5.0 mi from the center of Phnom Penh.

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

    $466 is the cheapest one-way deal found within the past few days, from Philippine Airlines. You may also be able to find cheap deals on Korean Air and China Eastern, with prices starting from $729 and $960, respectively.

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

    Most travelers choose Phnom Penh Pochentong - Seattle/Tacoma Intl, Phnom Penh Pochentong - Spokane or Phnom Penh Pochentong - Portland when deciding on the best route from Phnom Penh to State of Washington.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Washington 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 Phnom Penh to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Phnom Penh to State of Washington (average of $238). Flying from Phnom Penh to State of Washington in July is currently the most expensive (average of $411). 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 Phnom Penh to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Phnom Penh to Washington

Discover the top 4 airlines that operate flights from Phnom Penh to Washington. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$745Average$1,016FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$928Average$1,217FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$953Average$1,147FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,088Average$1,331FlexibilityNo cancel feeOn-time74%
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