Cheap Flights from Phnom Penh (PNH) to Seattle (SEA)

Popular airlines from Phnom Penh Intl. Airport (PNH) to Seattle-Tacoma International Airport (SEA)

Find the cheapest month to fly from Phnom Penh (PNH) to Seattle (SEA)

September is typically the cheapest month to fly

From $745 - $1,117 per traveler.

Frequently asked questions

How much does a flight from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA) cost?
Snag a cheap one-way flight or cheap return flight from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from PNH to SEA is , when demand is low. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PNH to SEA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA)?
Direct flights from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PNH to SEA?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA)?
Select a flight from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from PNH to SEA just before your journey is generally more expensive. However, if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a PNH to SEA flight and hotel package?
Securing a PNH to SEA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phnom Penh Intl. Airport (PNH) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your PNH to SEA flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Phnom Penh Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
7437 mi

Book with confidence

Phnom Penh to Seattle Flights

The cheapest times to fly from Phnom Penh to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phnom Penh to Seattle are during the month of . You can find some of the cheapest flights from Phnom Penh to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phnom Penh to Seattle

Sunday is one of the best days to book for cheap flights from Phnom Penh to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phnom Penh to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phnom Penh to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phnom Penh to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phnom Penh to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phnom Penh to Seattle Flights

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*Available to One Key members.