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Cheap flights from Seattle (SEA) to Koh Samui (USM) from $540

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. 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
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
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 May 30, 2024.

Round-trip from

$1,045
From Seattle/Tacoma Intl to Ko Samui
Search Deals

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 113% when planning your travel around this day of the week.

What is the cheapest time of day to fly from SEA to 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 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 2,784,634 searches. Prices were last updated on May 30, 2024.
Thu 6/206:40 pmSEA - USM
2 stops57h 40mTurkish Airlines
Thu 6/271:30 pmUSM - SEA
2 stops41h 15mTurkish Airlines
Deal found 5/29$1,846
Thu 6/203:10 pmSEA - USM
2 stops37h 10mMultiple Airlines
Thu 6/279:15 pmUSM - SEA
3 stops29h 15mMultiple Airlines
Deal found 5/29$2,612
Wed 6/191:50 amSEA - USM
2 stops27h 55mMultiple Airlines
Thu 6/2710:05 amUSM - SEA
2 stops23h 25mMultiple Airlines
Deal found 5/29$3,036
Thu 6/207:00 amSEA - USM
3 stops60h 20mJapan Airlines
Thu 6/277:10 pmUSM - SEA
3 stops33h 21mJapan Airlines
Deal found 5/29$3,229
Thu 6/2010:15 amSEA - USM
1 stop35h 15mMultiple Airlines
Thu 6/279:10 pmUSM - SEA
2 stops54h 15mMultiple Airlines
Deal found 5/29$4,653

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 2,784,634 searches. Data last updated May 30, 2024.
Tue 10/291:10 amSEA - USM
2 stops40h 35mEVA Air
Thu 11/288:30 amUSM - SEA
2 stops24h 40mEVA Air
Deal found 5/29$1,082
Wed 10/3011:35 pmSEA - USM
2 stops25h 20mMultiple Airlines
Thu 11/283:40 pmUSM - SEA
2 stops41h 35mMultiple Airlines
Deal found 5/29$1,325
Wed 10/309:59 pmSEA - USM
3 stops26h 56mMultiple Airlines
Thu 11/281:55 pmUSM - SEA
2 stops19h 15mMultiple Airlines
Deal found 5/29$1,424
Thu 6/206:40 pmSEA - USM
2 stops57h 40mTurkish Airlines
Thu 6/271:30 pmUSM - SEA
2 stops41h 15mTurkish Airlines
Deal found 5/29$1,846
Wed 10/307:58 pmSEA - USM
3 stops28h 57mMultiple Airlines
Thu 11/287:55 amUSM - SEA
3 stops25h 13mMultiple Airlines
Deal found 5/29$1,907
Thu 6/203:10 pmSEA - USM
2 stops37h 10mMultiple Airlines
Thu 6/279:15 pmUSM - SEA
3 stops29h 15mMultiple Airlines
Deal found 5/29$2,612
Wed 6/191:50 amSEA - USM
2 stops27h 55mMultiple Airlines
Thu 6/2710:05 amUSM - SEA
2 stops23h 25mMultiple Airlines
Deal found 5/29$3,036
Thu 6/207:00 amSEA - USM
3 stops60h 20mJapan Airlines
Thu 6/277:10 pmUSM - SEA
3 stops33h 21mJapan Airlines
Deal found 5/29$3,229
Thu 6/2010:15 amSEA - USM
1 stop35h 15mMultiple Airlines
Thu 6/279:10 pmUSM - SEA
2 stops54h 15mMultiple Airlines
Deal found 5/29$4,653

One-way flights to Koh Samui from Seattle

Search for one-way flight options from Seattle to Koh Samui. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Thu 7/111:30 pmSEA - USM
2 stops28h 45mMultiple Airlines
Deal found 5/29$540
Tue 7/91:30 pmSEA - USM
2 stops28h 45mMultiple Airlines
Deal found 5/29$549
Fri 7/121:30 pmSEA - USM
2 stops28h 45mMultiple Airlines
Deal found 5/29$589
Wed 7/105:15 pmSEA - USM
3 stops49h 00mMultiple Airlines
Deal found 5/29$651
Sat 7/136:29 pmSEA - USM
3 stops47h 46mMultiple Airlines
Deal found 5/29$681
Thu 7/115:15 pmSEA - USM
3 stops49h 20mMultiple Airlines
Deal found 5/29$720
Wed 7/101:30 pmSEA - USM
2 stops41h 00mMultiple Airlines
Deal found 5/29$725
Fri 7/125:15 pmSEA - USM
3 stops49h 00mMultiple Airlines
Deal found 5/29$731
Sun 7/145:15 pmSEA - USM
3 stops49h 00mMultiple Airlines
Deal found 5/29$738

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,082 - $4,653

Route

Depart

Return

Price

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 10/29

2 stops40h 35m

Ko Samui

Thu 11/28

2 stops24h 40m

$1,082

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 10/30

2 stops25h 20m

Ko Samui

Thu 11/28

2 stops41h 35m

$1,325

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 10/30

3 stops26h 56m

Ko Samui

Thu 11/28

2 stops19h 15m

$1,424

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 6/20

2 stops57h 40m

Ko Samui

Thu 6/27

2 stops41h 15m

$1,846

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 10/30

3 stops28h 57m

Ko Samui

Thu 11/28

3 stops25h 13m

$1,907

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 6/20

2 stops37h 10m

Ko Samui

Thu 6/27

3 stops29h 15m

$2,612

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 6/19

2 stops27h 55m

Ko Samui

Thu 6/27

2 stops23h 25m

$3,036

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 6/20

3 stops60h 20m

Ko Samui

Thu 6/27

3 stops33h 21m

$3,229

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 6/20

1 stop35h 15m

Ko Samui

Thu 6/27

2 stops54h 15m

$4,653

Flights are sorted by cheapest first

Deals found on 5/29

What is the cheapest day 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 26, 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.
Search Deals

Best time to book a flight from Seattle to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 May 30, 2024.
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

Reviews

1 / 10

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

EVA Air
8.4
Very good
1,500 reviews
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

Reviews

1 / 10

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

Japan Airlines
8.3
Very good
1,467 reviews
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

Reviews

1 / 10

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

Singapore Airlines
8.2
Very good
1,424 reviews
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

Reviews

1 / 10

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

Qatar Airways
7.7
Good
4,339 reviews
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

Reviews

1 / 10

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

Turkish Airlines
7.4
Good
3,711 reviews
EVA Air
8.4
Very good
1,500 reviews
Check prices

Food

8.0

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.2

Crew

8.6

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 $1,100 on Cheapflights?

    Yes, there are multiple flights from Seattle to Koh Samui for under $1,100. The cheapest flight booked recently is on EVA Air for just $1,082, but on average you can expect to pay $2,346.

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

    According to our current data, EVA Air ($1,082), Turkish Airlines ($1,846), and Japan Airlines ($3,229) offers the cheapest pricing from Seattle to Koh Samui.

  • What are the cheapest airlines to fly from Seattle to Koh Samui one-way?

    The cheapest airlines for a one-way flight from Seattle to Koh Samui are Qatar Airways ($1,055), EVA Air ($1,108), and Singapore Airlines ($1,195).

  • 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 5/29.

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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,269Average$1,388FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
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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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