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$465+ Cheap flights from Phnom Penh (PNH) to Seattle (SEA)

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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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1. Tell us where you want to go
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The best prices from Phnom Penh Pochentong to Seattle/Tacoma Intl are usually found in November or February, booked 76 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Phnom Penh to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Seattle (SEA). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$696
(oojo)

One-way from

$465
(oojo)

Popular in

January

Cheapest in

November

Average price

$985
Provider with most accurate pricing for Phnom Penh Pochentong-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Seattle/Tacoma Intl flights.
Search Deals
From Phnom Penh Pochentong to Seattle/Tacoma Intl
Search Deals
One-way flight from Phnom Penh Pochentong to Seattle/Tacoma Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
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 Seattle

Cheapest flights from Phnom Penh to Seattle
Explore the most affordable flight options available from Phnom Penh to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 4/11:15 amPNH - SEA
1 stop32h 05mPhilippine Airlines
Wed 4/2311:30 pmSEA - PNH
1 stop34h 45mPhilippine Airlines
Deal found 2/20$696
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Wed 4/211:55 pmPNH - SEA
1 stop26h 35mAsiana Airlines
Thu 4/242:15 pmSEA - PNH
1 stop18h 40mAsiana Airlines
Deal found 2/20$768
This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 4/111:30 pmPNH - SEA
1 stop25h 10mKorean Air
Mon 5/512:50 pmSEA - PNH
1 stop19h 20mKorean Air
Deal found 2/20$996
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sun 3/2311:35 amPNH - SEA
1 stop21h 40mChina Airlines
Sat 3/291:10 amSEA - PNH
1 stop24h 55mChina Airlines
Deal found 2/20$1,012
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/29:25 amPNH - SEA
2 stops23h 55mMultiple Airlines
Wed 4/2311:30 pmSEA - PNH
1 stop34h 45mMultiple Airlines
Deal found 2/20$1,032
This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 4/112:35 pmPNH - SEA
1 stop20h 15mEVA Air
Sun 5/41:50 amSEA - PNH
1 stop19h 25mEVA Air
Deal found 2/20$1,132
This oojo deal was found by Cheapflights users on 2/20. 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.
Tue 4/16:55 pmPNH - SEA
2 stops35h 58mSingapore Airlines
Mon 5/57:00 amSEA - PNH
2 stops35h 40mSingapore Airlines
Deal found 2/20$1,298
This Cathay Pacific deal was found by Cheapflights users on 2/20. 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 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 stops28h 27mCathay Pacific
Wed 4/238:37 amSEA - PNH
2 stops35h 38mCathay Pacific
Deal found 2/20$1,685
This Emirates deal was found by Cheapflights users on 2/20. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/239:30 pmPNH - SEA
2 stops54h 05mEmirates
Sun 3/305:15 pmSEA - PNH
2 stops33h 20mEmirates
Deal found 2/20$1,715
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2112:25 amPNH - SEA
2 stops32h 13mAir China
Fri 3/283:01 pmSEA - PNH
2 stops42h 04mAir China
Deal found 2/20$1,723

Find flights from Phnom Penh to Seattle within your budget

Customize your flight search to find flights from Phnom Penh to Seattle 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 20, 2025.

Fly from

Phnom Penh

Fly to

Seattle

Route

Depart

Return

Price

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Tue 4/1

1:15 am-7:20 pm

1 stop32h 05m

Seattle/Tacoma Intl

Wed 4/23

11:30 pm-12:15 am

1 stop34h 45m

$696

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Wed 4/2

11:55 pm-12:30 pm

1 stop26h 35m

Seattle/Tacoma Intl

Thu 4/24

2:15 pm-10:55 pm

1 stop18h 40m

$768

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

11:35 am-7:15 pm

1 stop21h 40m

Seattle/Tacoma Intl

Sat 3/29

1:10 am-4:05 pm

1 stop24h 55m

$1,012

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Wed 4/2

9:25 am-7:20 pm

2 stops23h 55m

Seattle/Tacoma Intl

Wed 4/23

11:30 pm-12:15 am

1 stop34h 45m

$1,032

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Tue 4/1

12:35 pm-6:50 pm

1 stop20h 15m

Seattle/Tacoma Intl

Sun 5/4

1:50 am-11:15 am

1 stop19h 25m

$1,132

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

7:00 am-8:40 am

2 stops35h 40m

$1,298

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Fri 4/4

6:30 pm-8:57 am

2 stops28h 27m

Seattle/Tacoma Intl

Wed 4/23

8:37 am-10:15 am

2 stops35h 38m

$1,685

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Sun 3/23

9:30 pm-1:35 pm

2 stops54h 05m

Seattle/Tacoma Intl

Sun 3/30

5:15 pm-4:35 pm

2 stops33h 20m

$1,715

Phnom PenhSeattle

PNH - SEA

PNHSEA

Phnom Penh Pochentong

Fri 3/21

12:25 am-6:38 pm

2 stops32h 13m

Seattle/Tacoma Intl

Fri 3/28

3:01 pm-11:05 pm

2 stops42h 04m

$1,723

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 18 results
1
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Compare providers for flights from Phnom Penh to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Phnom Penh to Seattle in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phnom Penh-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phnom Penh-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Phnom Penh to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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 Seattle

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

How far ahead should I book a flight from Phnom Penh to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Phnom Penh to Seattle. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Phnom Penh to Seattle, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phnom Penh to Seattle?

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to Seattle (average of $238). Flying from Phnom Penh to Seattle 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 SEA?

Find hourly flight availability from Phnom Penh to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Phnom Penh to Seattle by exploring options for tickets at noon.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle 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 Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 20, 2025.
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Korean Air
8.4
Very good
1,037 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Emirates
8.1
Very good
3,279 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.0

Comfort

8.2

Boarding

8.4

Overall

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Related info for your journey

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

  • What are the cheapest airlines flying from Phnom Penh to Seattle round-trip?

    Philippine Airlines, at $696, was found to be the cheapest airline from Phnom Penh to Seattle.Alternate airlines to your destination round-trip include Asiana Airlines and Korean Air. Philippine Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Phnom Penh to Seattle one-way?

    One-way options have recently been found by users for as low as $465 on Philippine Airlines. Other airlines that offer cheap prices include Korean Air from $617 and China Airlines from $677 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from Phnom Penh to Seattle (average of $238). Flying from Phnom Penh to Seattle 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.

See more FAQs

Traveling to a place near Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phnom Penh to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Phnom Penh to Spokane flights
Phnom Penh to Portland flights

Top 4 airlines flying from Phnom Penh to Seattle

Discover the top 4 airlines that operate flights from Phnom Penh to Seattle. 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 20, 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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