₩498,300 Cheap Flights from Seattle (SEA) to Phnom Penh (PNH)

View ₩498,300 flight on Fri, Feb 27, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at ₩498,300 for one-way flights and ₩1,282,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,282,900 Roundtrip, found 1 day ago
₩1,282,900
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,282,900 found 1 day ago
Delta
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,322,900 Roundtrip, found 1 day ago
₩1,322,900
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,322,900 found 1 day ago
Delta
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,428,700 Roundtrip, found 1 day ago
₩1,428,700
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,428,700 found 1 day ago
Alaska Airlines
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,430,600 Roundtrip, found 1 day ago
₩1,430,600
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,430,600 found 1 day ago
Delta
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,455,300 Roundtrip, found 1 day ago
₩1,455,300
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,455,300 found 1 day ago
Cathay Pacific
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,456,000 Roundtrip, found 1 day ago
₩1,456,000
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,456,000 found 1 day ago
Delta
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,456,600 Roundtrip, found 1 day ago
₩1,456,600
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,456,600 found 1 day ago
Cathay Pacific
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,457,700 Roundtrip, found 1 day ago
₩1,457,700
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,457,700 found 1 day ago
Delta
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,463,200 Roundtrip, found 1 day ago
₩1,463,200
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,463,200 found 1 day ago
EVA Airways
Wed, Aug 20 - Sun, Aug 24
SEA
Seattle
PNH
Phnom Penh
₩1,581,600 Roundtrip, found 1 day ago
₩1,581,600
Roundtrip
found 1 day ago
Select EVA Airways flight, departing Wed, Aug 20 from Seattle to Phnom Penh, returning Sun, Aug 24, priced at ₩1,581,600 found 1 day ago

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

November is typically the cheapest month to fly

From ₩1,000,735 - ₩1,694,985 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Phnom Penh (PNH)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Phnom Penh Intl.
Roundtrip price
₩1,282,900
Distance
11899 km

Seattle to Phnom Penh Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Phnom Penh will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Phnom Penh.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to PNH flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to PNH with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from SEA to PNH?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey between Sea-Tac Airport and Phnom Penh Airport was ₩1,282,900. Cheap tickets don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Phnom Penh Airport?
Every air carrier has its own terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Phnom Penh Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Phnom Penh Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to PNH?
SeaTac to Cambodia is around 12,000 kilometers, so be prepared to spend a while in the air. Make sure you pack all the essentials, from your headphones to your hoodie. Toss in some snacks to munch on throughout your trip too.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to PNH?
If you want to travel straight from Seattle - Tacoma Intl. Airport (SEA) to PNH, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.
Are Sea-Tac Airport to Phnom Penh Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some of the cheapest fares from SEA to Phnom Penh Airport showing up a few weeks prior to the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines publish prices that far in advance.

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