Are direct flights from Seoul to Ko Samui always the best option?

Direct flights are often the most convenient, saving travel time and reducing the chance of missed connections. However, they may not always be the cheapest option. Flights with one or more layovers can sometimes offer lower fares, especially for longer distances.

Can flexible travel dates help on Seoul to Ko Samui flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying on weekdays or during off-peak seasons usually results in lower fares compared to weekends or major holidays. Adjusting your departure or return by a few days may reveal better deals.

What extra costs should I check before booking Seoul to Ko Samui flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight meal costs. Some airlines may also charge for printing boarding passes at the airport. These additional fees can add up and impact the total price of your trip.

Flights From Seoul

To Ko Samui

Cheap Flights from Seoul to Ko Samui

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Prices updated today

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Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seoul to Ko Samui

Explore current cheapest deals departing from Seoul to Ko Samui

Round trip

Sort by: Cheapest

September 14 - September 23

Cheapest

ICN - Ko Samui

$328

$361

Round trip

September 6 - September 19

Cheapest

ICN - Ko Samui

$312

$361

Round trip

October 11 - October 13

Cheapest

ICN - Ko Samui

$355

$361

Round trip

October 26 - October 30

Cheapest

ICN - Ko Samui

$350

$361

Round trip

September 13 - September 23

ICN - Ko Samui

$321

$363

Round trip

August 9 - August 11

Best

Earliest

ICN - Ko Samui

$432

$370

Round trip

October 14 - October 20

ICN - Ko Samui

$342

$371

Round trip

October 18 - October 20

ICN - Ko Samui

$354

$374

Round trip

November 18 - November 24

ICN - Ko Samui

$345

$374

Round trip

October 19 - October 23

ICN - Ko Samui

$353

$375

Round trip

Unlock all 500+ flight deals to Ko Samui and get alerts when great deals appear

Seoul to Ko Samui: Overview

Insights for flights from Seoul to Ko Samui

For travelers looking for cheap flights from Seoul to Ko Samui, September stands out as the most affordable month, with a median fare of just $187. Other cost-effective options include March, where the median fare is $246, and October, with a median fare of $299. Planning your trip during these months can significantly reduce travel costs.

Right now, fares for this route typically range from $298–$408, with a median price of $347. Current prices are significantly above the typical level for this route. Only 9% of recent fares were classified as a good price, indicating that finding a bargain may require flexibility or waiting for better market conditions. New deals for this route appear almost daily, so setting up a price alert could be beneficial.

Most itineraries from Seoul to Ko Samui involve connections, as 0% of recent fares were non-stop. When connections are necessary, the typical number of stopovers is 1. This means you should expect at least one layover on your journey.

A typical journey from Seoul to Ko Samui takes approximately 17h 30m, including connections. This duration accounts for the fact that most itineraries involve at least one stopover, making it a long-haul trip.

The distance between Seoul and Ko Samui is 4078 kilometers, classifying this as a long-haul flight. This considerable distance contributes to the overall journey time and the need for connecting flights.

How much is a round trip from Seoul to Ko Samui

Regular price: $302 - $609

Prices for flights from Seoul to Ko Samui are currently within the regular range.

The regular price range for flights from Seoul to Ko Samui is between $302 and $609. The current lowest deal is $350 with Scoot, for travel from Oct 26-Oct 28.

now $350

Low $302

High $609

The cheapest time to fly from Seoul to Ko Samui

The cheapest month to fly from Seoul to Koh Samui is September, with a median price of $187. The most expensive month is April, with a median price of $495. Prices are generally lower from January to October.

September

Cheapest

Flights from $187

April

Most Expensive

Flights from $495

Jan

Feb

Mar

Apr

May

Jun

Jul

Sep

Oct

Direct flights from Seoul to Ko Samui

Scoot

Singapore Airlines

Coyne Aviation

T'way Air

Last-minute flights going from Seoul to Ko Samui

Sun, Jul 19

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$398

$360

One-way

Sun, Jul 19

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$387

$360

One-way

Sun, Jul 19

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$434

$360

One-way

Sun, Aug 9

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$420

$360

One-way

Sun, Aug 9

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$376

$360

One-way

Mon, Aug 17

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Scoot

$369

$375

One-way

Biggest price drops on these dates for flights from Seoul to Ko Samui

2 nights

Aug 9 - Aug 11

$430 → $370

14%

1 night

Aug 17 - Aug 18

$421 → $396

3 nights

Jul 23 - Jul 26

$460 → $442

2 nights

Aug 24 - Aug 26

$412 → $399

Popular Airports to fly from Seoul to Ko Samui

Seoul - Ko Samui route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Seoul to Ko Samui are above the typical level at $350.

📅 Best time to fly

September is historically cheapest at $187

Historically, September is the cheapest month to fly from Seoul to Ko Samui at $187.

⏱️ Flight duration

Connecting flights average 17h 30m

Flights from Seoul to Ko Samui typically involve 1 stopover, averaging 17h 30m.

✈️ Airlines & availability

Connecting flights are dominant

Direct flights are not available; connecting flights are the only option for this route.

🏆 Airline highlight

Scoot offers many deals

Scoot has historically offered 59 deals for flights on this route.

🎯 Booking tip

Deals are frequent

Historically, deals for flights on this route appear frequently, about every 30 days.

Seoul main airports to depart from

Incheon International (ICN)

Cheapest

Fly from Incheon International for a potentially cheaper option to Ko Samui.

📍 ~50 km from Seoul city center (reachable by car or train)

💸 Flights from ~$322

Gimpo International (GMP)

Consider Gimpo International for your journey from Seoul to Ko Samui.

📍 ~20 km from Seoul city center (reachable by car or train)

💸 Flights from ~$530

Ko Samui main airports to arrive at

Samui (USM)

Cheapest

Samui Airport is the most convenient arrival airport for your trip to Ko Samui.

📍 ~6 km from Ko Samui (reachable by car)

💸 Flights from ~$322

Airports nearby Ko Samui used as alternative

Surat Thani International (URT)

Consider this airport for its well-established ferry and bus transfer infrastructure to Ko Samui.

📍 ~135 km from Ko Samui (requires a ferry crossing and bus transfer)

💸 Flights from ~$382

Krabi (KBV)

Cheapest

This major regional hub offers more international connections and good availability of low-cost carriers.

📍 ~160 km from Ko Samui (requires a ferry crossing and land transfer)

💸 Flights from ~$242

Phuket International (HKT)

Phuket International provides the largest international flight network in Southern Thailand for alternatives.

📍 ~200 km from Ko Samui (requires ferry and land transport)

💸 Flights from ~$314

Nakhon Si Thammarat (NST)

A viable mainland alternative for domestic Thai flights, often serving as a backup to Surat Thani.

📍 ~100 km from Ko Samui (requires ferry and land transport)

💸 Flights from ~$357

Chumphon (CJM)

An alternative for travelers heading towards Northern or Central Thailand mainland regions.

📍 ~165 km from Ko Samui (requires ferry and land transport)

💸 Flights from ~$431

Business & First Class Flight Deals to Ko Samui

68% AI deal score

$2,022

From ICN

Elite

Jul 29

Ko Samui, Thailand

68% AI deal score

$2,127

From ICN

Elite

Jul 02

Ko Samui, Thailand

68% AI deal score

$2,311

Frequently Asked Questions About Flights to Ko Samui

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Looking into flights with layovers instead of direct routes may also present cheaper options.

Booking flights in advance, often several months out, can sometimes secure lower prices. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Mid-week bookings might also offer slight advantages.

Comparing nearby airports at both your origin and destination can sometimes lead to more economical flight options. While it may add to your ground travel, the savings on airfare can sometimes be significant. Always factor in the total cost and time.

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Cheap Flights from Seoul to Ko Samui

Today’s best flight deals from Seoul to Ko Samui

Unlock all 500+ flight deals to Ko Samui and get alerts when great deals appear

Seoul to Ko Samui: Overview

Insights for flights from Seoul to Ko Samui

How much is a round trip from Seoul to Ko Samui

The cheapest time to fly from Seoul to Ko Samui

Direct flights from Seoul to Ko Samui

Last-minute flights going from Seoul to Ko Samui

Biggest price drops on these dates for flights from Seoul to Ko Samui

Popular Airports to fly from Seoul to Ko Samui

Seoul - Ko Samui route insights

Recent fares are above the typical level

September is historically cheapest at $187

Connecting flights average 17h 30m

Connecting flights are dominant

Scoot offers many deals

Deals are frequent

Seoul main airports to depart from

Ko Samui main airports to arrive at

Airports nearby Ko Samui used as alternative

Business & First Class Flight Deals to Ko Samui

Best Elite deals to Ko Samui

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Frequently Asked Questions About Flights to Ko Samui

How can I find cheap flights from Seoul to Ko Samui?

How can I find cheap flights from Seoul to Ko Samui?

When should I book flights from Seoul to Ko Samui?

When should I book flights from Seoul to Ko Samui?

Should I compare nearby airports for flights from Seoul to Ko Samui?

Should I compare nearby airports for flights from Seoul to Ko Samui?

Are direct flights from Seoul to Ko Samui always the best option?

Are direct flights from Seoul to Ko Samui always the best option?

Can flexible travel dates help on Seoul to Ko Samui flights?

Can flexible travel dates help on Seoul to Ko Samui flights?

What extra costs should I check before booking Seoul to Ko Samui flights?

What extra costs should I check before booking Seoul to Ko Samui flights?

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