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Phnom Penh

$542+ Cheap flights from Seattle (SEA) 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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The best prices from Seattle/Tacoma Intl to Phnom Penh Pochentong are usually found in January or October, booked 17 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Seattle to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$839
(FlightHub)

One-way from

$542
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$1,596
Provider with most accurate pricing for Seattle/Tacoma Intl-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Phnom Penh Pochentong flights.
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From Seattle/Tacoma Intl to Phnom Penh Pochentong
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One-way flight from Seattle/Tacoma Intl to Phnom Penh Pochentong
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High demand for flights, 17% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Phnom Penh

Cheapest flights from Seattle to Phnom Penh
Explore the most affordable flight options available from Seattle 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 Seattle to Phnom Penh within your budget

Customize your flight search to find flights from Seattle 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

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

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Mon 12/30

7:20 am-11:15 pm

2 stops24h 55m

$542

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Wed 1/1

3:45 pm-5:05 pm

3 stops58h 20m

$697

SeattlePhnom Penh

SEA - PNH

SEAPNH

Seattle/Tacoma Intl

Mon 12/30

12:45 pm-11:20 pm

1 stop19h 35m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 16 results
1
2

Compare providers for flights from Seattle to Phnom Penh

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 Seattle to Phnom Penh in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
SmartFaresPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*2 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 Seattle-Phnom Penh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Phnom Penh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Phnom Penh 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 Seattle-Phnom Penh 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 Seattle to Phnom Penh

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Phnom Penh. Price data was last updated on December 13, 2024.

The best time to book flights from Seattle to Phnom Penh is 17 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Phnom Penh (average of $1,014). Flying from Seattle 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 SEA to PNH?

Find hourly flight availability from Seattle 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.

One of the essential ways to save on airfare from Seattle to Phnom Penh is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

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.
Read through reviews of airlines operating flights from Seattle to Phnom Penh, such as Asiana Airlines, China Airlines and Singapore Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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
1,273 reviews
EVA Air
8.4
Very good
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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
1,273 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Food

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

    Our cheapest airline available from Seattle to Phnom Penh is Asiana Airlines. Our recent data shows that you can find tickets from as low as $839 on this airline. Additional options worth looking into are Korean Air and China Airlines, starting at $868 and $938 round-trip. Asiana Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle 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.

  • Where are the most common layover locations when flying from Seattle to Phnom Penh?

    Seattle to Phnom Penh flights have a layover in Taipei City most of the time.

  • What are some popular things to do or see while on a layover in Taipei City?

    The majority of Taipei City visitors spend their time at Taipei 101, Shilin Night Market, and Raohe Street Night Market. Taipei 101, Shilin Night Market, and Raohe Street Night Market can be accessed by traveling approximately 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl. Travelers in need of a car in Taipei City can rent one for about $85 per day.

  • Where are the least popular layover locations for Seattle to Phnom Penh flights?

    Flights departing from Seattle and landing in Phnom Penh layover in Incheon least frequently.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Phnom Penh (average of $1,014). Flying from Seattle 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 Seattle to Phnom Penh

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

Top 5 airlines flying from Seattle to Phnom Penh

Discover the top 5 airlines that operate flights from Seattle 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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