CA $779 Cheap Flights from Seattle (SEA) to Phnom Penh (PNH)

View CA $779 flight on Wed, Oct. 15, 2025Opens in a new window

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

Prices were available within the past 7 days and start at CA $779 for one-way flights and CA $1,072 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Sun., Mar. 9 - Sun., Mar. 16
SEA
Seattle
PNH
Phnom Penh
CA $1,072 Roundtrip, found 4 days ago
CA $1,072
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun., Mar. 9 from Seattle to Phnom Penh, returning Sun., Mar. 16, priced at CA $1,072 found 4 days ago
Delta
Tue., Mar. 4 - Sat., Mar. 8
SEA
Seattle
PNH
Phnom Penh
CA $1,118 Roundtrip, found 2 days ago
CA $1,118
Roundtrip
found 2 days ago
Select Delta flight, departing Tue., Mar. 4 from Seattle to Phnom Penh, returning Sat., Mar. 8, priced at CA $1,118 found 2 days ago
Korean Air
Tue., Mar. 4 - Sat., Mar. 8
SEA
Seattle
PNH
Phnom Penh
CA $1,118 Roundtrip, found 2 days ago
CA $1,118
Roundtrip
found 2 days ago
Select Korean Air flight, departing Tue., Mar. 4 from Seattle to Phnom Penh, returning Sat., Mar. 8, priced at CA $1,118 found 2 days ago
Delta
Sun., Mar. 9 - Sun., Mar. 16
SEA
Seattle
PNH
Phnom Penh
CA $1,120 Roundtrip, found 4 days ago
CA $1,120
Roundtrip
found 4 days ago
Select Delta flight, departing Sun., Mar. 9 from Seattle to Phnom Penh, returning Sun., Mar. 16, priced at CA $1,120 found 4 days ago
Asiana Airlines
Sun., Mar. 9 - Sun., Mar. 16
SEA
Seattle
PNH
Phnom Penh
CA $1,126 Roundtrip, found 4 days ago
CA $1,126
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Sun., Mar. 9 from Seattle to Phnom Penh, returning Sun., Mar. 16, priced at CA $1,126 found 4 days ago
Delta
Fri., Feb. 21 - Mon., Feb. 24
SEA
Seattle
PNH
Phnom Penh
CA $1,190 Roundtrip, found 3 days ago
CA $1,190
Roundtrip
found 3 days ago
Select Delta flight, departing Fri., Feb. 21 from Seattle to Phnom Penh, returning Mon., Feb. 24, priced at CA $1,190 found 3 days ago
Philippine Airlines
Wed., Oct. 15 - Wed., Oct. 29
SEA
Seattle
PNH
Phnom Penh
CA $1,244 Roundtrip, just found
CA $1,244
Roundtrip
just found
Select Philippine Airlines flight, departing Wed., Oct. 15 from Seattle to Phnom Penh, returning Wed., Oct. 29, priced at CA $1,244 just found
Delta
Fri., Feb. 21 - Fri., Feb. 28
SEA
Seattle
PNH
Phnom Penh
CA $1,261 Roundtrip, found 3 days ago
CA $1,261
Roundtrip
found 3 days ago
Select Delta flight, departing Fri., Feb. 21 from Seattle to Phnom Penh, returning Fri., Feb. 28, priced at CA $1,261 found 3 days ago
Delta
Tue., Mar. 4 - Sat., Mar. 8
SEA
Seattle
PNH
Phnom Penh
CA $1,332 Roundtrip, found 2 days ago
CA $1,332
Roundtrip
found 2 days ago
Select Delta flight, departing Tue., Mar. 4 from Seattle to Phnom Penh, returning Sat., Mar. 8, priced at CA $1,332 found 2 days ago
China Airlines
Sun., Mar. 9 - Sun., Mar. 16
SEA
Seattle
PNH
Phnom Penh
CA $1,530 Roundtrip, found 4 days ago
CA $1,530
Roundtrip
found 4 days ago
Select China Airlines flight, departing Sun., Mar. 9 from Seattle to Phnom Penh, returning Sun., Mar. 16, priced at CA $1,530 found 4 days ago
Flight from Seattle to Phnom Penh (SEA - PNH) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Phnom Penh Intl.
Roundtrip price
CA $1,072
Distance
11899 km

Seattle to Phnom Penh Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from Seattle to Phnom Penh with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from SEA to PNH and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from Seattle to Phnom Penh on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from SEA to PNH. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

Combine your Phnom Penh flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

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 CA $1,072. 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.
Seattle nearby Airports

Seattle Paine Field Intl. Airport

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