Cheap Flights from Phnom Penh to Seattle / Tacoma International

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Compare Phnom Penh to Seattle / Tacoma International flight deals

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Flight deals from Phnom Penh to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Phnom Penh to Seattle / Tacoma International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Phnom Penh to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phnom Penh to Seattle / Tacoma International flights are currently cheapest in June.

Phnom Penh to Seattle / Tacoma International: Alternative routes

Compare routes from Phnom Penh to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Phnom Penh to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 8,762
Cheapest month to flyJune

Finding cheap flights from Phnom Penh to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Phnom Penh to Seattle / Tacoma International is R 13,422. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Phnom Penh to Seattle / Tacoma International. But we found flights with one or more stops from R 13,422.
As of April 2025, there are no flights flying from Phnom Penh to Seattle / Tacoma International.
The cheapest month to fly from Phnom Penh to Seattle / Tacoma International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phnom Penh Airport to Seattle / Tacoma International Airport on Sunday, 12 October 2025.
No airlines currently offer direct flights between Phnom Penh Airport and Seattle / Tacoma International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Philippine Airlines offers the cheapest flight tickets to Seattle / Tacoma International.

Flying from Phnom Penh International Airport (PNH) to Seattle-Tacoma International Airport (SEA): what you need to know

  • The timezone in Seattle is UTC-7, which is 14 hours behind Phnom Penh.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport on time to board your PNH to SEA flight.

  • During popular months like August, you'll want to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from Phnom Penh International Airport to Seattle-Tacoma International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Some great stopovers between PNH and SEA include:

    • Taiwan Taoyuan International Airport

    • Shanghai Pudong International Airport

    • Beijing Capital International Airport

How to find the cheapest flights from Phnom Penh International Airport (PNH) to Seattle-Tacoma International Airport (SEA)

  • R 8,762 is currently the lowest price for a one-way Phnom Penh International Airport to Seattle-Tacoma International Airport flight. Return flights start from R 13,422. These prices can change based on availability.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from PNH to SEA if you book ahead. Airlines often offer some excellent early bird discounts.

  • If you can be flexible with your travel dates, use the 'Whole month' search function. It'll show you the lowest price across every month when looking for a flight from Phnom Penh International Airport to Seattle-Tacoma International Airport.

  • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll send you an update as soon as the price changes on cheap flights from PNH to SEA.

  • Tailor your flights using filters. Select your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Phnom Penh International Airport to Seattle-Tacoma International Airport.

Handy information about Phnom Penh International Airport (PNH)

  • Of the flights that depart from Phnom Penh International Airport, 74.4% land on time at their destination.

  • Central Phnom Penh to Phnom Penh International Airport is approximately 11 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Need a convenient hotel close to PNH? If you've booked an early flight from Phnom Penh International Airport to Seattle-Tacoma International Airport, these stays will have you sleeping moments from check-in:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • From Seattle-Tacoma International Airport, Seattle is approximately 23 kilometres away. It takes around 20 minutes to reach the centre by car.

  • It'll take around 55 minutes if you're using public transport.

When to fly to Seattle-Tacoma International Airport (SEA)

  • It's time to work out your travel dates for your flight from Phnom Penh International Airport to Seattle-Tacoma International Airport. July is the busiest month to head to Seattle. If you're after a more low-key vibe, go in May.

  • When booking your flight from Phnom Penh International Airport to Seattle-Tacoma International Airport, consider the type of weather you like. August is the warmest month in Seattle, with temperatures ranging from 12ºC (54ºF) to 28ºC (82ºF).

  • Search for cheap tickets from PNH to SEA in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -1ºC (30ºF) and 11ºC (52ºF) on average.

Explore more of United States

  • Seattle has loads to offer, but there are so many other corners of United States waiting to be explored. About 241 kilometres south of Seattle, a trip to Portland will keep you on the go. Start with leading sights like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • If you're ready to explore another major stop in United States, head for Spokane, about 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.