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Cheap flights from Seattle (SEA) to Koh Samui (USM) from $1,116

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — USM
may. 21 — may. 281
From?
To?
mar. 5/21
mar. 5/28
1 adult, Economy
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Cheap flight deals from Seattle to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 16, 2024.

Round-trip from

$1,045
From Seattle/Tacoma Intl to Ko Samui
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What is the cheapest day to fly round-trip from Seattle to Koh Samui?

Departing on a Saturday is a good option for securing a great price. You can expect to save up to 37% when planning your travel around this day of the week.

When is the cheapest time to fly from Seattle to Koh Samui (SEA - USM)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Koh Samui as you normally would.

Cheap Singapore Airlines flights from Seattle to Koh Samui

Explore cheap flight options specifically provided by Singapore Airlines for the route between Seattle and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Peruse some of the lowest-priced Singapore Airlines flights we've found from Seattle to Koh Samui. It's recommended that users confirm their flight details before booking.
mié. 5/297:00 amSEA - USM
2 stops45h 20mSingapore Airlines
mié. 6/59:00 amUSM - SEA
1 stop37h 45mSingapore Airlines
Deal found 5/15$2,557
sáb. 8/2410:15 amSEA - USM
1 stop35h 00mSingapore Airlines
dom. 9/14:25 pmUSM - SEA
1 stop54h 20mSingapore Airlines
Deal found 5/16$6,300
sáb. 8/2410:15 amSEA - USM
1 stop31h 50mSingapore Airlines
sáb. 8/319:00 amUSM - SEA
1 stop37h 45mSingapore Airlines
Deal found 5/15$6,338

Cheap Japan Airlines flights from Seattle to Koh Samui

Explore cheap flight options specifically provided by Japan Airlines for the route between Seattle and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
To aid your search, here are some of the cheapest Japan Airlines flights we've found from Seattle to Koh Samui. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
sáb. 8/247:00 amSEA - USM
3 stops35h 35mJapan Airlines
dom. 9/17:10 pmUSM - SEA
2 stops29h 15mJapan Airlines
Deal found 5/16$5,805
sáb. 8/247:00 amSEA - USM
3 stops35h 35mJapan Airlines
dom. 9/17:10 pmUSM - SEA
3 stops35h 50mJapan Airlines
Deal found 5/16$6,743

Cheap Seattle to Koh Samui flights in May & June 2024

Find cheap flight options from Seattle to Koh Samui specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on mayo 16, 2024.
Scroll through some of the best deals on flights from Seattle to Koh Samui in 2024. Check back regularly for other flight deals.
mié. 5/296:40 pmSEA - USM
2 stops33h 20mMultiple Airlines
mié. 6/53:25 pmUSM - SEA
2 stops39h 20mMultiple Airlines
Deal found 5/15$1,387
mié. 5/2910:40 amSEA - USM
3 stops31h 35mMultiple Airlines
mié. 6/59:15 pmUSM - SEA
2 stops29h 30mMultiple Airlines
Deal found 5/15$2,113
mar. 5/281:50 amSEA - USM
2 stops22h 55mMultiple Airlines
mié. 6/59:15 pmUSM - SEA
2 stops29h 30mMultiple Airlines
Deal found 5/15$2,176
mié. 5/297:00 amSEA - USM
2 stops45h 20mSingapore Airlines
mié. 6/59:00 amUSM - SEA
1 stop37h 45mSingapore Airlines
Deal found 5/15$2,557
mié. 5/2910:40 amSEA - USM
3 stops31h 35mMultiple Airlines
mié. 6/56:25 pmUSM - SEA
3 stops44h 21mMultiple Airlines
Deal found 5/15$2,615
mar. 5/281:50 amSEA - USM
2 stops22h 55mMultiple Airlines
mié. 6/56:25 pmUSM - SEA
3 stops44h 21mMultiple Airlines
Deal found 5/15$2,700
mar. 5/281:50 amSEA - USM
2 stops29h 05mMultiple Airlines
mié. 6/512:10 pmUSM - SEA
1 stop34h 35mMultiple Airlines
Deal found 5/15$3,207

Seattle to Koh Samui 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Koh Samui in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Scroll through some of the best deals on flights from Seattle to Koh Samui in 2024. Check back regularly for other flight deals.
dom. 11/1012:10 amSEA - USM
2 stops23h 45mEVA Air
mié. 11/137:55 amUSM - SEA
2 stops25h 15mEVA Air
Deal found 5/15$1,116
jue. 11/2112:10 amSEA - USM
2 stops23h 45mEVA Air
dom. 12/19:25 pmUSM - SEA
2 stops35h 45mEVA Air
Deal found 5/16$1,246
mié. 5/296:40 pmSEA - USM
2 stops33h 20mMultiple Airlines
mié. 6/53:25 pmUSM - SEA
2 stops39h 20mMultiple Airlines
Deal found 5/15$1,387
vie. 11/2210:35 pmSEA - USM
2 stops26h 05mMultiple Airlines
dom. 12/110:05 amUSM - SEA
2 stops23h 10mMultiple Airlines
Deal found 5/16$1,444
vie. 11/229:30 amSEA - USM
3 stops34h 05mMultiple Airlines
dom. 12/12:05 pmUSM - SEA
3 stops39h 52mMultiple Airlines
Deal found 5/16$1,960
lun. 11/114:05 pmSEA - USM
2 stops26h 20mQatar Airways
mié. 11/139:25 pmUSM - SEA
2 stops29h 25mQatar Airways
Deal found 5/15$2,001
vie. 11/2212:10 pmSEA - USM
2 stops28h 00mMultiple Airlines
dom. 12/12:30 pmUSM - SEA
3 stops38h 59mMultiple Airlines
Deal found 5/16$2,036
mié. 5/2910:40 amSEA - USM
3 stops31h 35mMultiple Airlines
mié. 6/59:15 pmUSM - SEA
2 stops29h 30mMultiple Airlines
Deal found 5/15$2,113
mar. 5/281:50 amSEA - USM
2 stops22h 55mMultiple Airlines
mié. 6/59:15 pmUSM - SEA
2 stops29h 30mMultiple Airlines
Deal found 5/15$2,176

Find flights from Seattle to Koh Samui within your budget

Customize your flight search to find flights from Seattle to Koh Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,116 - $5,805

Route

Depart

Return

Price

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

dom. 11/10

2 stops23h 45m

Ko Samui

mié. 11/13

2 stops25h 15m

$1,116

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mié. 5/29

2 stops33h 20m

Ko Samui

mié. 6/5

2 stops39h 20m

$1,387

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

lun. 11/11

2 stops26h 20m

Ko Samui

mié. 11/13

2 stops29h 25m

$2,001

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mié. 5/29

3 stops31h 35m

Ko Samui

mié. 6/5

2 stops29h 30m

$2,113

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mar. 5/28

2 stops22h 55m

Ko Samui

mié. 6/5

2 stops29h 30m

$2,176

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mié. 5/29

2 stops45h 20m

Ko Samui

mié. 6/5

1 stop37h 45m

$2,557

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mié. 5/29

3 stops31h 35m

Ko Samui

mié. 6/5

3 stops44h 21m

$2,615

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

mar. 5/28

2 stops22h 55m

Ko Samui

mié. 6/5

3 stops44h 21m

$2,700

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

sáb. 8/24

3 stops35h 35m

Ko Samui

dom. 9/1

2 stops29h 15m

$5,805

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Seattle to Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Koh Samui. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Koh Samui flight should consider departing on Friday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Koh Samui by month

Plan your trip from Seattle to Koh Samui by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Koh Samui is currently $0 while a round-trip flight costs $2,497. Price data was last updated on May 12, 2024.

Temperature and rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature and rainfall totals by month.

USM

Temperature

80.6 - 84.2 °F

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Koh Samui. Reviews last updated mayo 16, 2024.
To help decide which airline to fly from Seattle to Koh Samui, see what other customers have to say about Singapore Airlines and Japan Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,516 reviews
Check prices

Comfort

8.2

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

EVA Air
8.4
Very good
1,516 reviews
EVA Air
8.4
Very good
1,516 reviews
Check prices

Comfort

8.2

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Japan Airlines
8.3
Very good
1,472 reviews
EVA Air
8.4
Very good
1,516 reviews
Check prices

Comfort

8.2

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Singapore Airlines
8.3
Very good
1,447 reviews
EVA Air
8.4
Very good
1,516 reviews
Check prices

Comfort

8.2

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Qatar Airways
7.7
Good
4,387 reviews
EVA Air
8.4
Very good
1,516 reviews
Check prices

Comfort

8.2

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Related info for your journey

Find useful and relevant information for your journey from Seattle to Koh Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Seattle to Koh Samui for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Koh Samui for under $1,200. The cheapest flight booked recently is on EVA Air for just $1,116, but on average you can expect to pay $4,329.

  • What are the cheapest airlines flying from Seattle to Koh Samui round-trip?

    According to our current data, EVA Air ($1,116), Qatar Airways ($2,001), and Singapore Airlines ($2,557) offers the cheapest pricing from Seattle to Koh Samui.

  • What does SEA to USM mean?

    SEA stands for Seattle/Tacoma Intl Airport, while USM stands for Ko Samui Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Seattle to Koh Samui that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Koh Samui flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Koh Samui with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Koh Samui flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Seattle to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Koh Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Koh Samui.

  • Can I find deals for business class flights from Seattle to Koh Samui?

    Yes. Cheapflights offers flight deals from Seattle to Koh Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Koh Samui that allow pets onboard?

    Many airlines flying from Seattle to Koh Samui offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Koh Samui?

    Yes, you can often find last-minute deals on Seattle to Koh Samui flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Koh Samui flight deals updated?

    The Seattle to Koh Samui flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Seattle to Koh Samui
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Seattle to Koh Samui

Discover the top airline that operate flights from Seattle to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,269Average$1,401FlexibilityNo cancel feeOn-time74%
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Search flights from Seattle to Koh Samui by cabin class

Find flights from Seattle to Koh Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Koh Samui?

Cheapflights helps you search for flights from Seattle to Koh Samui via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Koh Samui?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Koh Samui.

Can Cheapflights find flights from Seattle to Koh Samui with no change fees?

Yes, we can. To see specific flights from Seattle to Koh Samui with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Koh Samui become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to Koh Samui on Cheapflights with our Price Alert feature and get notified when better prices are available.

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