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Cheap flights from Seattle to Koh Samui from $607

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Koh Samui departing on 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Koh Samui

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Koh Samui that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Koh Samui.

Cheap last minute flights

Planning a quick getaway from Seattle to Koh Samui? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Koh Samui, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Koh Samui

Find recent round-trip train or bus tickets from Seattle to Koh Samui.

All round-trip flight deals to Koh Samui

The cheapest plane tickets to Koh Samui found on KAYAK recently.
8:40 am - 8:00 amSEA-USM
32h 20m1 stop
8:55 am - 8:10 amUSM-SEA
37h 15m1 stop
$951Singapore Airlines
Find Deal
Thu, Feb 13 - Fri, Mar 14
8:40 am - 8:00 amSEA-USM
32h 20m1 stop
8:55 am - 8:10 amUSM-SEA
37h 15m1 stop
$997Singapore Airlines
Find Deal
Thu, Feb 13 - Fri, Mar 14
12:45 pm - 7:40 amSEA-USM
27h 55m2 stops
8:20 pm - 10:55 amUSM-SEA
29h 35m2 stops
$1,013
Find Deal
Wed, Feb 5 - Wed, Feb 12
12:45 pm - 7:40 amSEA-USM
27h 55m2 stops
8:30 pm - 10:55 amUSM-SEA
29h 25m2 stops
$1,014
Find Deal
Wed, Feb 5 - Wed, Feb 12
11:30 pm - 5:00 pmSEA-USM
26h 30m2 stops
9:20 am - 5:40 pmUSM-SEA
23h 20m2 stops
$1,110EVA Air
Find Deal
Tue, Feb 4 - Tue, Feb 11
12:10 am - 7:45 amSEA-USM
40h 35m2 stops
10:00 am - 6:10 pmUSM-SEA
23h 10m2 stops
$1,148EVA Air
Find Deal
Tue, Feb 4 - Wed, Feb 12
4:30 pm - 1:55 pmSEA-USM
31h 25m2 stops
11:25 am - 12:30 pmUSM-SEA
39h 05m2 stops
$1,158Qatar Airways
Find Deal
Wed, Apr 2 - Wed, Apr 9
4:30 pm - 10:30 amSEA-USM
28h 00m2 stops
2:30 pm - 12:30 pmUSM-SEA
36h 00m2 stops
$1,277Qatar Airways
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Sun, Apr 6 - Sat, Apr 12
7:00 pm - 7:40 amSEA-USM
45h 40m2 stops
8:15 am - 5:05 pmUSM-SEA
47h 50m2 stops
$1,638Turkish Airlines
Find Deal
Fri, Jan 17 - Fri, Jan 24
7:00 pm - 7:40 amSEA-USM
45h 40m2 stops
9:25 pm - 5:05 pmUSM-SEA
34h 40m2 stops
$1,708Turkish Airlines
Find Deal
Fri, Jan 17 - Thu, Jan 23
1:10 am - 10:35 amSEA-USM
43h 25m2 stops
$607EVA Air
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Thu, Mar 13
12:10 am - 8:45 pmSEA-USM
53h 35m2 stops
$656EVA Air
Find Deal
Tue, Feb 4
8:00 pm - 8:50 pmSEA-USM
34h 50m2 stops
$737Turkish Airlines
Find Deal
Fri, Mar 14
4:05 pm - 10:40 amSEA-USM
27h 35m2 stops
$791Qatar Airways
Find Deal
Wed, Feb 5
10:35 am - 10:35 amSEA-USM
33h 00m3 stops
$1,076
Find Deal
Wed, Feb 5
8:06 am - 6:15 pmSEA-USM
44h 09m3 stops
$1,515Singapore Airlines
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Fri, Mar 14
7:15 pm - 1:05 pmSEA-USM
26h 50m2 stops
7:00 pm - 9:50 amUSM-SEA
29h 50m2 stops
$2,455
Find Deal
Thu, Dec 26 - Sat, Dec 28
3:05 pm - 1:05 pmSEA-USM
31h 00m2 stops
3:35 pm - 8:05 amUSM-SEA
31h 30m3 stops
$2,542
Find Deal
Thu, Dec 26 - Sat, Dec 28
12:10 am - 7:35 pmSEA-USM
28h 25m2 stops
7:55 am - 5:40 pmUSM-SEA
24h 45m2 stops
$2,585
Find Deal
Wed, Dec 25 - Sat, Dec 28
12:05 am - 7:35 pmSEA-USM
28h 30m2 stops
3:35 pm - 8:05 amUSM-SEA
31h 30m3 stops
$3,097
Find Deal
Wed, Dec 25 - Sat, Dec 28
8:40 am - 8:00 amSEA-USM
32h 20m1 stop
7:00 pm - 9:50 amUSM-SEA
29h 50m2 stops
$3,267
Find Deal
Thu, Dec 26 - Sat, Dec 28
12:10 am - 7:35 pmSEA-USM
28h 25m2 stops
8:55 am - 7:10 amUSM-SEA
37h 15m1 stop
$3,722
Find Deal
Wed, Dec 25 - Sat, Dec 28
8:40 am - 8:00 amSEA-USM
32h 20m1 stop
7:25 pm - 7:10 amUSM-SEA
26h 45m1 stop
$4,191
Find Deal
Thu, Dec 26 - Sat, Dec 28

EVA Air flights from Seattle to Koh Samui

Our best EVA Air deals on Seattle to Koh Samui flight tickets
EVA Air
Feb 4
SEA11:30 pmSeattle/Tacoma Intl
26h 30m
2 stops
USM5:00 pmKo Samui
Feb 11
USM9:20 amKo Samui
23h 20m
2 stops
SEA5:40 pmSeattle/Tacoma Intl
EVA Air
Feb 4
SEA12:10 amSeattle/Tacoma Intl
40h 35m
2 stops
USM7:45 amKo Samui
Feb 12
USM10:00 amKo Samui
23h 10m
2 stops
SEA6:10 pmSeattle/Tacoma Intl
EVA Air
Feb 4
SEA12:10 amSeattle/Tacoma Intl
40h 35m
2 stops
USM7:45 amKo Samui
Feb 12
USM10:00 amKo Samui
23h 10m
2 stops
SEA6:10 pmSeattle/Tacoma Intl

Singapore Airlines flights from Seattle to Koh Samui

Our best Singapore Airlines deals on Seattle to Koh Samui flight tickets
Singapore Airlines
Feb 13
SEA8:40 amSeattle/Tacoma Intl
32h 20m
1 stop
USM8:00 amKo Samui
Mar 14
USM8:55 amKo Samui
37h 15m
1 stop
SEA8:10 amSeattle/Tacoma Intl
Singapore Airlines
Feb 13
SEA8:40 amSeattle/Tacoma Intl
32h 20m
1 stop
USM8:00 amKo Samui
Mar 14
USM8:55 amKo Samui
37h 15m
1 stop
SEA8:10 amSeattle/Tacoma Intl
Singapore Airlines
Apr 6
SEA10:15 amSeattle/Tacoma Intl
31h 50m
1 stop
USM8:05 amKo Samui
Apr 12
USM9:00 amKo Samui
37h 45m
1 stop
SEA8:45 amSeattle/Tacoma Intl

See travel insights to Koh Samui from

How to get the cheapest flight ticket from Seattle to Koh Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Koh Samui?

According to our data, Thursday is the cheapest day to fly to Koh Samui from Seattle. The lowest ticket price found for a Thursday departure recently was $1,704. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,778.

What is the cheapest time of day to depart on your flight to Koh Samui?

According to our data, the cheapest time of day to fly to Koh Samui is in the evening. momondo users have found flights departing from Seattle to Koh Samui in the evening for as low as $1,417. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $1,417. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Seattle to Koh Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Koh Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Koh Samui (SEA to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Koh Samui

Best Price Found

$607

Fastest flight time

21h 25m

Direct flights

None

Airports in Koh Samui

1 airport
The best one-way flight to Koh Samui from Seattle in the past 72 hours is $607. The best round-trip flight deal from Seattle to Koh Samui found on momondo in the last 72 hours is $951.
The fastest flight from Seattle to Koh Samui takes 21h 25m
There are no direct flights from Seattle to Koh Samui. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Ko Samui Airport.
There is 1 airport near Koh Samui: Ko Samui (USM)

  • How far is Seattle/Tacoma Intl to Ko Samui by plane?

    The distance between Seattle/Tacoma Intl and Ko Samui is about 7708.5 mi. A reasonable flight in good conditions will take 21h 25m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ko Samui Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Ko Samui Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ko Samui Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ko Samui Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seattle to Koh Samui?


Best airlines flying from Seattle to Koh Samui

Compare and see reviews for airlines that fly from Seattle to Koh Samui with momondo
Airline
Rating
Free Cancellation
Price
EVA AirPriceFrom $1,057Free CancellationRating
8.4
1,263 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Koh Samui?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Koh Samui. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Koh Samui with flexible booking policies on momondo?

momondo does allow users to show only those flights to Koh Samui from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Koh Samui?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Koh Samui.

I’m not ready to book a flight from Seattle to Koh Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Koh Samui from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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