Cheap Flights from Seattle to Koh Samui from £580️ (SEA-USM)

Flights from Seattle to Koh Samui

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Flights from Seattle to Koh Samui Starting at CNY 580

We've found these cheap flights for you. You can book one-way or return flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Seattle to Koh Samui

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines

From £580

United Airlines

From £651

Asiana Airlines

From £691

EVA Air

From £698

Qatar Airways

From £703

Thai Airways

From £709

All Nippon Airways

From £779

Turkish Airlines

From £989

Emirates

From £1,284

ANA airlines

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Alternative Routes from Seattle to Koh Samui

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Koh Samui.

Cheapest
SEA
06:00
25h 15m
2 transfer
USM
21:15
Seattle-Tacoma International Airport - Samui International Airport
Wed, May 1Alaska Airlines
£580
SEA
06:00
25h 15m
2 transfer
USM
21:15
Seattle-Tacoma International Airport - Samui International Airport
Wed, May 1Alaska Airlines
£580
Find More Flights

How do I find the cheapest flights?

When are flight tickets from Seattle (SEA) to Koh Samui (USM) the cheapest?
Airlines adjust prices for flights from Seattle to Koh Samui based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Seattle (SEA) to Koh Samui (USM) cost?
According to Trip.com's data, the lowest price is around £2,085.
What is the transportation method from the main airport to downtown in Koh Samui?
- The distance from Samui International Airport to downtown is about 3km, by taxi about 20 minutes.
How many airports in Koh Samui (USM)?
There are 1 airport(s) in Koh Samui (USM): Samui International Airport.

How to find a cheap flight from Seattle to Koh Samui

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Koh Samui. Book your flights at the right time and save more.

Book Early

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Compare Flight Prices

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Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

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