Cheap flights from Seattle to Ko Samui from $580

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 Ko Samui departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Ko Samui

Cheap round-trip flights

Singapore Airlines Logo
8:45 am - 8:00 amSEA-USM
32h 15m1 stop
Singapore Airlines Logo
8:55 am - 7:10 amUSM-SEA
37h 15m1 stop
$758Singapore Airlines
Find Deal
Fri, Nov 14 - Thu, Nov 20
 Logo
11:00 am - 7:10 amSEA-USM
29h 10m2 stops
 Logo
7:00 am - 9:00 amUSM-SEA
41h 00m2 stops
Mon, Nov 3 - Mon, Nov 17
 Logo
12:10 am - 7:10 amSEA-USM
40h 00m2 stops
 Logo
7:00 am - 1:55 pmUSM-SEA
45h 55m2 stops
Sun, Nov 2 - Mon, Nov 17
 Logo
2:15 pm - 7:45 pmSEA-USM
39h 30m2 stops
 Logo
7:00 am - 12:30 pmUSM-SEA
43h 30m2 stops
Sun, Sep 7 - Fri, Sep 19
EVA Air Logo
12:10 am - 2:55 pmSEA-USM
23h 45m2 stops
EVA Air Logo
10:00 am - 5:40 pmUSM-SEA
22h 40m2 stops
$1,040EVA Air
Find Deal
Thu, Nov 13 - Thu, Nov 20
EVA Air Logo
1:30 am - 8:50 pmSEA-USM
29h 20m2 stops
EVA Air Logo
9:00 pm - 6:50 pmUSM-SEA
35h 50m2 stops
$1,078EVA Air
Find Deal
Sat, Sep 6 - Fri, Sep 19
Japan Airlines Logo
1:30 pm - 8:15 amSEA-USM
28h 45m2 stops
Japan Airlines Logo
9:00 pm - 10:25 amUSM-SEA
27h 25m2 stops
$1,277Japan Airlines
Find Deal
Sun, Oct 19 - Wed, Oct 22
Turkish Airlines Logo
12:30 pm - 8:15 amSEA-USM
29h 45m2 stops
Turkish Airlines Logo
8:45 am - 10:35 amUSM-SEA
39h 50m2 stops
$1,278Turkish Airlines
Find Deal
Sat, Aug 23 - Mon, Sep 8
Cathay Pacific Logo
11:37 am - 7:20 amSEA-USM
29h 43m3 stops
Cathay Pacific Logo
10:55 am - 9:36 pmUSM-SEA
24h 41m2 stops
$1,699Cathay Pacific
Find Deal
Sun, Sep 7 - Fri, Sep 19
Cathay Pacific Logo
3:43 pm - 8:30 pmSEA-USM
38h 47m3 stops
Cathay Pacific Logo
10:55 am - 11:42 pmUSM-SEA
26h 47m2 stops
$1,813Cathay Pacific
Find Deal
Sat, Aug 23 - Mon, Sep 8

Singapore Airlines flights from Seattle to Ko Samui

Our best Singapore Airlines deals on Seattle to Ko Samui flight tickets
Singapore Airlines
Nov 14
SEA8:45 amSeattle/Tacoma Intl
32h 15m
1 stop
USM8:00 amKo Samui
Nov 20
USM8:55 amKo Samui
37h 15m
1 stop
SEA7:10 amSeattle/Tacoma Intl
Singapore Airlines
Sep 7
SEA10:15 amSeattle/Tacoma Intl
42h 15m
1 stop
USM6:30 pmKo Samui
Sep 19
USM12:05 pmKo Samui
34h 40m
1 stop
SEA8:45 amSeattle/Tacoma Intl
Singapore Airlines
Dec 6
SEA8:45 amSeattle/Tacoma Intl
32h 15m
1 stop
USM8:00 amKo Samui
May 2
USM5:40 pmKo Samui
29h 05m
1 stop
SEA8:45 amSeattle/Tacoma Intl

EVA Air flights from Seattle to Ko Samui

Our best EVA Air deals on Seattle to Ko Samui flight tickets
EVA Air
Nov 13
SEA12:10 amSeattle/Tacoma Intl
23h 45m
2 stops
USM2:55 pmKo Samui
Nov 20
USM10:00 amKo Samui
22h 40m
2 stops
SEA5:40 pmSeattle/Tacoma Intl
EVA Air
Sep 6
SEA1:30 amSeattle/Tacoma Intl
29h 20m
2 stops
USM8:50 pmKo Samui
Sep 19
USM9:00 pmKo Samui
35h 50m
2 stops
SEA6:50 pmSeattle/Tacoma Intl
EVA Air
Oct 18
SEA1:30 amSeattle/Tacoma Intl
23h 40m
2 stops
USM3:10 pmKo Samui
Oct 22
USM10:05 amKo Samui
23h 25m
2 stops
SEA7:30 pmSeattle/Tacoma Intl

See travel insights to Ko Samui from

How to get the cheapest flight ticket from Seattle to Ko 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 Ko Samui?

Our data shows that Tuesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $275. Flights from Seattle to Ko Samui on a Sunday will generally be more expensive and average around $548. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Seattle to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as $304. In the evening is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $454 per ticket.

When to book flights from Seattle to Ko Samui

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

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

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

Best Price Found

$580

Fastest flight time

20h 55m

Direct flights

None

Airports in Ko Samui

1 airport
The best one-way flight to Ko Samui from Seattle in the past 72 hours is $580. The best round-trip flight deal from Seattle to Ko Samui found on momondo in the last 72 hours is $758.
The fastest flight from Seattle to Ko Samui takes 20h 55m
There are no direct flights from Seattle to Ko Samui. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Ko Samui Airport.
There is 1 airport near Ko 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 20h 55m.

  • 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 Ko Samui?


Best airlines flying from Seattle to Ko Samui

Compare and see reviews for airlines that fly from Seattle to Ko Samui with momondo
Airline
Rating
Free Cancellation
Price
EVA AirPriceFrom $999Free CancellationRating
8.4
1,215 reviews
Search EVA Air flights

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Ko 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 Ko 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 Ko Samui.

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

Price alerts on flights to Ko 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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1 adult
Tue 7/15
Tue 7/22

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