SEL - USM

Find Cheap Flights from Seoul to Ko Samui – Compare and Save

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Everything you should know

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 • 33% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Singapore Changi (SIN)
Cheapest • Avg ฿18,503 (return)
Bangkok Suvarnabhumi (BKK)
Shortest trip • 9h 22m (one-way)
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Insights
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We hope you enjoy your trip to Ko Samui!
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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

Multiple Airlines Logo
SEL  Seoul All airports-USM Ko Samui
6624 kmmulti-stop
Multiple Airlines Logo
USM  Ko Samui-SEL Seoul All airports
6624 kmmulti-stop
Multiple 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 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 ฿20,999 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?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Seoul to Ko Samui. It’s 19% cheaper than the average day, while Wednesday is the most expensive, with prices 34% higher.

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 ฿14,173 return.
•January (฿33,915) and April (฿23,386) 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.

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Key details for Seoul to Ko Samui flights

Low season

December
Beat the crowds with an average 80% drop in traveller numbers.
The most popular month to fly with an average 94% increase in traveller numbers.

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 answers about this route, including flight times, airports, airlines, and booking tips.

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

    A direct flight from Seoul to Ko Samui takes 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.

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

    Return flights from Seoul to Ko Samui range from ฿17,155 to ฿24,438, with an average of ฿20,999 over the past 12 months. Anything below ฿17,155 counts as a good deal.

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

    Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around ฿430 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • 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?

    Connecting flights from Seoul to Ko Samui most commonly pass through:

    • Bangkok Suvarnabhumi (BKK) – 60% of one-stop connections
    • Singapore Changi (SIN) – 40% of one-stop connections

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

    Yes. Flexible dates can save you up to 40% on flights from Seoul to Ko Samui. Saturday is the cheapest departure day at ฿17,177 return on average, while Wednesday is the most expensive at ฿28,313, a difference of ฿11,136.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 22m, compared to 12h 56m via Singapore Changi (SIN).

  • 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.

  • What popular places can I visit in Ko Samui?

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

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 Saturday departure and avoid flying on Wednesday. On this route, Saturday flights average ฿17,177, about ฿11,136 less than Wednesday fares (39% 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 ฿14,173 return in that month – typically ฿19,741 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
    • Melia Koh Samui
    • Royal Muang Samui Villas

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