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Cheap flights from Seattle (SEA) to Koh Samui (USM) from $934

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 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
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 June 11, 2024.

Round-trip from

$1,173

One-way from

$934
From Seattle/Tacoma Intl to Ko Samui
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One-way flight 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 Wednesday is a good option for securing a great price. You can expect to save up to 122% 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 June & July 2024

Find cheap flight options from Seattle to Koh Samui specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 11, 2024.
Wed 7/176:40 pmSEA - USM
2 stops33h 20mMultiple Airlines
Wed 7/314:25 pmUSM - SEA
2 stops62h 20mMultiple Airlines
Deal found 6/11$1,771
Tue 7/162:10 amSEA - USM
2 stops23h 00mMultiple Airlines
Wed 7/319:15 amUSM - SEA
2 stops24h 35mMultiple Airlines
Deal found 6/11$1,797
Wed 7/177:05 pmSEA - USM
3 stops27h 40mMultiple Airlines
Wed 7/315:25 pmUSM - SEA
3 stops33h 05mMultiple Airlines
Deal found 6/11$1,865
Wed 7/177:40 amSEA - USM
3 stops35h 40mMultiple Airlines
Wed 7/317:30 pmUSM - SEA
2 stops31h 55mMultiple Airlines
Deal found 6/11$2,659
Tue 7/161:10 amSEA - USM
2 stops24h 00mMultiple Airlines
Wed 7/316:55 pmUSM - SEA
3 stops41h 25mMultiple Airlines
Deal found 6/11$2,671
Wed 7/177:12 pmSEA - USM
2 stops33h 08mSingapore Airlines
Wed 7/319:00 amUSM - SEA
1 stop37h 45mSingapore Airlines
Deal found 6/11$3,079

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 3,020,828 searches. Data last updated June 11, 2024.
Wed 7/176:40 pmSEA - USM
2 stops33h 20mMultiple Airlines
Wed 7/314:25 pmUSM - SEA
2 stops62h 20mMultiple Airlines
Deal found 6/11$1,771
Tue 7/162:10 amSEA - USM
2 stops23h 00mMultiple Airlines
Wed 7/319:15 amUSM - SEA
2 stops24h 35mMultiple Airlines
Deal found 6/11$1,797
Sat 8/31:40 amSEA - USM
2 stops25h 25mMultiple Airlines
Sat 8/109:15 amUSM - SEA
2 stops24h 35mMultiple Airlines
Deal found 6/11$1,856
Wed 7/177:05 pmSEA - USM
3 stops27h 40mMultiple Airlines
Wed 7/315:25 pmUSM - SEA
3 stops33h 05mMultiple Airlines
Deal found 6/11$1,865
Sun 8/42:20 pmSEA - USM
2 stops27h 55mMultiple Airlines
Sat 8/109:10 pmUSM - SEA
2 stops29h 35mMultiple Airlines
Deal found 6/11$1,887
Sun 8/410:15 amSEA - USM
1 stop31h 50mMultiple Airlines
Sat 8/109:15 amUSM - SEA
2 stops24h 35mMultiple Airlines
Deal found 6/11$2,121
Sun 8/43:10 pmSEA - USM
2 stops37h 10mMultiple Airlines
Sat 8/107:40 pmUSM - SEA
3 stops32h 54mMultiple Airlines
Deal found 6/11$2,268
Thu 12/2612:10 amSEA - USM
2 stops29h 35mMultiple Airlines
Fri 1/38:40 pmUSM - SEA
2 stops36h 25mMultiple Airlines
Deal found 6/10$2,311
Fri 12/2710:35 pmSEA - USM
2 stops25h 20mMultiple Airlines
Fri 1/310:05 amUSM - SEA
2 stops23h 10mMultiple Airlines
Deal found 6/10$2,317

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 3,020,828 searches. Data last updated June 11, 2024.
Thu 7/1110:15 amSEA - USM
1 stop55h 50mSingapore Airlines
Deal found 6/10$934
Thu 7/117:05 pmSEA - USM
2 stops33h 15mMultiple Airlines
Deal found 6/11$1,021
Thu 7/116:40 pmSEA - USM
2 stops36h 35mTurkish Airlines
Deal found 6/10$1,048
Thu 7/118:30 amSEA - USM
3 stops46h 00mJapan Airlines
Deal found 6/10$1,058
Wed 7/102:10 amSEA - USM
2 stops25h 35mEVA Air
Deal found 6/10$1,108

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 3,020,828 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,771 - $6,525

Route

Depart

Return

Price

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 7/17

2 stops33h 20m

Ko Samui

Wed 7/31

2 stops62h 20m

$1,771

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 7/16

2 stops23h 00m

Ko Samui

Wed 7/31

2 stops24h 35m

$1,797

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sat 8/3

2 stops25h 25m

Ko Samui

Sat 8/10

2 stops24h 35m

$1,856

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 7/17

3 stops27h 40m

Ko Samui

Wed 7/31

3 stops33h 05m

$1,865

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sun 8/4

2 stops27h 55m

Ko Samui

Sat 8/10

2 stops29h 35m

$1,887

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sun 8/4

1 stop31h 50m

Ko Samui

Sat 8/10

2 stops24h 35m

$2,121

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 7/17

2 stops33h 08m

Ko Samui

Wed 7/31

1 stop37h 45m

$3,079

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sat 8/24

2 stops33h 15m

Ko Samui

Sun 9/1

2 stops43h 30m

$5,357

Seattle/Tacoma IntlKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sat 8/24

2 stops30h 40m

Ko Samui

Sun 9/1

3 stops35h 50m

$6,525

Flights are sorted by cheapest first

Deals found on 6/11

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 June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Koh Samui flight should consider departing on Thursday 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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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

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 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 June 11, 2024.
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

Reviews

1 / 10

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

EVA Air
8.4
Very good
1,488 reviews
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

Reviews

1 / 10

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

Japan Airlines
8.3
Very good
1,457 reviews
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

Reviews

1 / 10

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

Singapore Airlines
8.3
Very good
1,417 reviews
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

Reviews

1 / 10

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

Qatar Airways
7.7
Good
4,301 reviews
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

Reviews

1 / 10

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

Turkish Airlines
7.4
Good
3,714 reviews
EVA Air
8.4
Very good
1,488 reviews

Boarding

8.4

Food

8.0

Crew

8.6

Entertainment

8.0

Overall

8.4

Comfort

8.2

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 $1,800 on Cheapflights?

    Yes, there are multiple flights from Seattle to Koh Samui for under $1,800. The cheapest flight booked recently is on Multiple Airlines for just $1,771, but on average you can expect to pay $4,943.

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

    According to our current data, Singapore Airlines ($3,079), Qatar Airways ($5,357), and Japan Airlines ($6,525) 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 Singapore Airlines ($934), Turkish Airlines ($1,048), and Japan Airlines ($1,058).

  • 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 6/11.

See more FAQs

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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 3,020,828 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest$1,269Average$1,460FlexibilityNo 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.
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