ICN - USM

฿7,019 Find Cheap Flights from Seoul Incheon Airport to Ko Samui – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿12,608
Typical prices: ฿16,851-฿23,513
Scoot
Thu 18/10Sat 27/10
ICN - USM • 1 stop
Cheapest one-way flight
฿7,019
Typical prices: ฿7,385-฿11,206
Scoot
Tue 20/2
ICN - USM • 1 stop
Direct flights
Not available
There are currently no direct flights between Incheon Intl Airport 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 ฿17,647 (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 Incheon Intl to Ko Samui (ICN-USM)

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

Recent return flight deals from Incheon Intl to Ko Samui

Sun 18 Oct - Tue 27 Oct
Scoot Logo
11:00 - 18:50ICN  Incheon Intl-USM Ko Samui
9h 50m1 stop Singapore Changi
Scoot Logo
19:45 - 10:10USM  Ko Samui-ICN Incheon Intl
12h 25m1 stop Singapore Changi
฿12,608Scoot
Fri 30 Oct - Fri 6 Nov
Multiple Airlines Logo
10:10 - 18:05ICN  Incheon Intl-USM Ko Samui
33h 55m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
18:40 - 16:30USM  Ko Samui-ICN Incheon Intl
19h 50m2 stops Bangkok Suvarnabhumi Hanoi Noibai
฿13,240Multiple Airlines
Thu 5 Nov - Sun 15 Nov
Multiple Airlines Logo
00:30 - 20:25ICN  Incheon Intl-USM Ko Samui
21h 55m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
08:30 - 16:25USM  Ko Samui-ICN Incheon Intl
29h 55m2 stops Bangkok Suvarnabhumi Ho Chi Minh City
฿13,273Multiple Airlines
Sat 17 Oct - Tue 20 Oct
Multiple Airlines Logo
11:05 - 20:50ICN  Incheon Intl-USM Ko Samui
11h 45m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
10:05 - 22:35USM  Ko Samui-ICN Incheon Intl
34h 30m2 stops Bangkok Suvarnabhumi Da Nang
฿13,639Multiple Airlines
Sun 18 Oct - Tue 27 Oct
Scoot Logo
11:00 - 18:50ICN  Incheon Intl-USM Ko Samui
9h 50m1 stop Singapore Changi
Scoot Logo
19:45 - 21:45USM  Ko Samui-ICN Incheon Intl
24h 00m2 stops Singapore Changi Taipei City Taiwan Taoyuan Intl
฿13,939Scoot
Wed 4 Nov - Sun 15 Nov
Multiple Airlines Logo
00:30 - 19:50ICN  Incheon Intl-USM Ko Samui
21h 20m2 stops Da Nang Bangkok Suvarnabhumi
Multiple Airlines Logo
08:30 - 16:30USM  Ko Samui-ICN Incheon Intl
30h 00m2 stops Bangkok Suvarnabhumi Hanoi Noibai
฿14,737Multiple Airlines
Thu 5 Nov - Sun 15 Nov
Multiple Airlines Logo
19:50 - 07:35ICN  Incheon Intl-USM Ko Samui
13h 45m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
12:00 - 10:10USM  Ko Samui-ICN Incheon Intl
20h 10m1 stop Singapore Changi
฿15,369Multiple Airlines
Mon 15 Feb - Sun 21 Feb
Scoot Logo
11:25 - 08:00ICN  Incheon Intl-USM Ko Samui
22h 35m1 stop Singapore Changi
Scoot Logo
19:45 - 10:10USM  Ko Samui-ICN Incheon Intl
12h 25m1 stop Singapore Changi
฿15,669Scoot
Fri 16 Oct - Fri 23 Oct
Multiple Airlines Logo
18:00 - 09:20ICN  Incheon Intl-USM Ko Samui
17h 20m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
15:55 - 10:35USM  Ko Samui-ICN Incheon Intl
16h 40m1 stop Bangkok Don Mueang Intl
฿15,702Multiple Airlines
Mon 15 Feb - Sun 21 Feb
Scoot Logo
11:25 - 08:00ICN  Incheon Intl-USM Ko Samui
22h 35m1 stop Singapore Changi
Scoot Logo
08:55 - 10:10USM  Ko Samui-ICN Incheon Intl
23h 15m1 stop Singapore Changi
฿15,768Scoot
Booking Insights

Price, demand, and travel trends for Incheon Intl Airport to Ko Samui flights

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

How much is a return flight from Incheon Intl Airport to Ko Samui?

Return flights from Incheon Intl Airport to Ko Samui start at ฿12,608. Prices are below average for this route right now, with typical return fares ranging from ฿16,851 to ฿23,513. The lowest price found in the past 5 days was ฿12,608 on Scoot.

What's the cheapest day of the week to fly from Incheon Intl Airport to Ko Samui?

Wednesday is the cheapest day of the week to fly from Incheon Intl Airport 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 Incheon Intl Airport to Ko Samui?

  • February is the cheapest month to fly from Incheon Intl Airport to Ko Samui at ฿13,972 return.
  • January (฿33,433) and December (฿32,734) 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 Incheon Intl Airport to Ko Samui flights

Low season

December

Cheapest flight

฿7,019
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 Incheon Intl to Ko Samui

Are your dates flexible? Find out the best times to travel from Incheon Intl 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 Incheon Intl Airport 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 Incheon Intl Airport to Ko Samui?

    Flights from Incheon Intl Airport to Ko Samui usually depart from Incheon Intl (ICN) and arrive at Ko Samui (USM).

  • Which airports do connecting flights from Incheon Intl Airport to Ko Samui pass through?

    One-stop flights from Incheon Intl Airport 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 Incheon Intl Airport to Ko Samui?

    Yes. Being flexible with your travel dates can save you up to 24% on the Incheon Intl Airport to Ko Samui route. Wednesday is the cheapest departure day at ฿17,265 return on average, while Monday is the most expensive at ฿22,655, a difference of ฿5,389. 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 Maenam Beach. These are among the most viewed places in Ko Samui on KAYAK.

  • How long is a flight from Incheon Intl Airport to Ko Samui?

    A direct flight from Incheon Intl Airport to Ko Samui takes 0h 00m, covering 6,556 km.

  • Do I need a passport to fly from Incheon Intl Airport 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 Incheon Intl Airport 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 ฿12,608 to ฿105,811. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Incheon Intl Airport to Ko Samui looking right now?

    One-way fares from Incheon Intl Airport to Ko Samui are currently in line with typical prices for this route. Average one-way fares are about ฿9,258.

  • How much time can I save by choosing a different stopover airport from Incheon Intl Airport 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 Incheon Intl Airport and Ko Samui?

    Ko Samui is 2 hours behind Incheon Intl Airport (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 ฿451 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 Incheon Intl Airport to Ko Samui flight?

    Return flights from Incheon Intl Airport to Ko Samui range from ฿16,851 to ฿23,513, with an average of ฿19,731 over the past 12 months. Anything below ฿16,851 counts as a good deal.

Your guide to booking Incheon Intl Airport 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 ฿17,265 – about ฿5,389 less than Monday (24% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Incheon Intl Airport to Ko Samui trip for February. Fares historically average ฿13,972 return in that month – typically ฿19,461 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 Incheon Intl 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