SEL - USM

฿6,740 Find Cheap Flights from Seoul to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
฿14,073
Typical prices: ฿16,655-฿23,239
Multiple Airlines
Mon 5/11Tue 20/11
ICN - USM • 2 stops
Cheapest one-way flight
฿6,740
Typical prices: ฿7,299-฿11,076
Scoot
Fri 21/9
ICN - USM • 1 stop
Direct flights
Not available
There are currently no direct flights between Seoul and Ko Samui. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 29% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Singapore Changi (SIN)
Cheapest • Avg ฿17,442 (return)
Bangkok Suvarnabhumi (BKK)
Shortest trip • 9h 20m (one-way)
Insights
Insights
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We hope you enjoy your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seoul to Ko Samui (SEL-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seoul to Ko Samui

Thu 5 Nov - Fri 20 Nov
Multiple Airlines Logo
00:30 - 07:10ICN  Incheon Intl-USM Ko Samui
32h 40m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
17:40 - 16:25USM  Ko Samui-ICN Incheon Intl
44h 45m2 stops Bangkok Suvarnabhumi Ho Chi Minh City
฿14,073Multiple Airlines
Sun 11 Oct - Sat 17 Oct
Scoot Logo
11:00 - 18:50ICN  Incheon Intl-USM Ko Samui
9h 50m1 stop Singapore Changi
Scoot Logo
08:40 - 09:45USM  Ko Samui-ICN Incheon Intl
23h 05m1 stop Singapore Changi
฿14,467Scoot
Fri 23 Oct - Wed 28 Oct
Multiple Airlines Logo
12:10 - 07:10ICN  Incheon Intl-USM Ko Samui
21h 00m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
08:50 - 07:10USM  Ko Samui-ICN Incheon Intl
20h 20m1 stop Chiang Mai
฿14,829Multiple Airlines
Sat 14 Nov - Sat 21 Nov
Multiple Airlines Logo
00:30 - 20:25ICN  Incheon Intl-USM Ko Samui
21h 55m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 16:25USM  Ko Samui-ICN Incheon Intl
31h 25m2 stops Bangkok Suvarnabhumi Ho Chi Minh City
฿15,026Multiple Airlines
Sat 24 Oct - Sat 31 Oct
Multiple Airlines Logo
23:00 - 10:55ICN  Incheon Intl-USM Ko Samui
13h 55m2 stops Taipei City Taiwan Taoyuan Intl Singapore Changi
Multiple Airlines Logo
11:00 - 10:05USM  Ko Samui-ICN Incheon Intl
21h 05m1 stop Bangkok Don Mueang Intl
฿15,651Multiple Airlines
Sat 24 Oct - Sat 31 Oct
Multiple Airlines Logo
11:05 - 20:25ICN  Incheon Intl-USM Ko Samui
35h 20m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 22:35USM  Ko Samui-ICN Incheon Intl
13h 35m2 stops Bangkok Suvarnabhumi Da Nang
฿15,717Multiple Airlines
Sat 24 Oct - Sat 31 Oct
Multiple Airlines Logo
11:05 - 20:25ICN  Incheon Intl-USM Ko Samui
35h 20m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 22:35USM  Ko Samui-ICN Incheon Intl
13h 35m2 stops Bangkok Suvarnabhumi Da Nang
฿15,881Multiple Airlines
Sat 24 Oct - Sat 31 Oct
Multiple Airlines Logo
23:00 - 10:55ICN  Incheon Intl-USM Ko Samui
13h 55m2 stops Taipei City Taiwan Taoyuan Intl Singapore Changi
Multiple Airlines Logo
16:35 - 10:05USM  Ko Samui-ICN Incheon Intl
15h 30m1 stop Bangkok Don Mueang Intl
฿15,914Multiple Airlines
Mon 15 Feb - Sun 21 Feb
Scoot Logo
11:30 - 17:10ICN  Incheon Intl-USM Ko Samui
31h 40m1 stop Singapore Changi
Scoot Logo
19:45 - 10:15USM  Ko Samui-ICN Incheon Intl
12h 30m1 stop Singapore Changi
฿15,980Scoot
Fri 6 Nov - Fri 20 Nov
Multiple Airlines Logo
11:20 - 20:30ICN  Incheon Intl-USM Ko Samui
11h 10m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
06:45 - 10:05USM  Ko Samui-ICN Incheon Intl
25h 20m1 stop Bangkok Don Mueang Intl
฿16,013Multiple Airlines
Booking Insights

Price, demand, and travel trends for Seoul to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seoul to Ko Samui with more confidence.

What is the cheapest Seoul to Ko Samui flight route?

There's little price difference between Seoul to Ko Samui routes. They average around ฿19,501 return, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Seoul to Ko Samui?

Wednesday is the cheapest day of the week to fly from Seoul to Ko Samui and is 13% cheaper than the average day. Monday is the most expensive day with flight prices 14% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seoul to Ko Samui?

  • February is the cheapest month to fly from Seoul to Ko Samui at ฿13,810 return.
  • January (฿33,044) and December (฿32,354) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 139% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Seoul to Ko Samui flights

Low season

December

Cheapest flight

฿6,740
Best time to beat the crowds but there is an average 66% increase in price.
Most popular time to fly (8% more expensive on average)
Flights from Incheon Intl Airport to Ko Samui

When to book flights from Seoul to Ko Samui

Are your dates flexible? Find out the best times to travel from Seoul to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seoul to Ko Samui flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Seoul to Ko Samui?

    Flights from Seoul to Ko Samui may depart from several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN). Flights usually arrive at Ko Samui (USM).

  • Which airports do connecting flights from Seoul to Ko Samui pass through?

    One-stop flights from Seoul to Ko Samui most commonly connect through:

    • Singapore Changi (SIN) – 59% of one-stop connections
    • Bangkok Suvarnabhumi (BKK) – 39% of one-stop connections
    • Phuket City (HKT) – 2% of one-stop connections

    Singapore Changi (SIN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seoul to Ko Samui?

    Yes. Being flexible with your travel dates can save you up to 24% on the Seoul to Ko Samui route. Wednesday is the cheapest departure day at ฿17,065 return on average, while Monday is the most expensive at ฿22,391, a difference of ฿5,327. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Hin Ta and Hin Yai Rocks. These are among the most viewed places in Ko Samui on KAYAK.

  • How long is a flight from Seoul to Ko Samui?

    A direct flight from Seoul to Ko Samui takes 0h 00m, covering 6,624 km.

  • Do I need a passport to fly from Seoul to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Seoul to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿14,073 to ฿83,342. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Seoul to Ko Samui looking right now?

    One-way fares from Seoul to Ko Samui are currently lower than usual. Average one-way flight prices are about ฿7,809, which is 16% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Seoul to Ko Samui?

    Flying via Bangkok Suvarnabhumi (BKK) gives the shortest average 1-stop total travel time of 9h 20m, compared to 12h 13m via Singapore Changi (SIN) and 14h 39m via Phuket City (HKT).

  • What is the time difference between Seoul and Ko Samui?

    Ko Samui is 2 hours behind Seoul (Indochina Time vs Korean Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿446 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz

  • How much should I expect to pay for a Seoul to Ko Samui flight?

    Return flights from Seoul to Ko Samui range from ฿16,655 to ฿23,239, with an average of ฿19,501 over the past 12 months. Anything below ฿16,655 counts as a good deal.

Your guide to booking Seoul to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average ฿17,065 – about ฿5,327 less than Monday (24% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seoul to Ko Samui trip for February. Fares historically average ฿13,810 return in that month – typically ฿19,235 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.
    - Ozo Chaweng Samui - Sha Extra Plus
    - Cosi Samui Chaweng Beach
    - Melia Koh Samui

More options for your flight from Seoul to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car rentals in Ko Samui
Hotels in Ko Samui