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

Direct flights offer convenience and save time, but they are not always the most budget-friendly choice. Flights with layovers can often be more affordable, especially for longer distances. Consider your priorities for cost versus travel time when making your decision.

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

Yes, being flexible with your travel dates can significantly impact flight prices. Flying during off-peak seasons or on weekdays often results in lower fares. Adjusting your departure and return dates by even a few days may reveal more economical options.

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 services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

Flights From Seoul

To Ko Samui

Cheap Flights from Seoul to Ko Samui

Browse current best options from Seoul. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seoul

RatePunk searches hundreds of travel sites at once for deals on flights to Ko Samui

Prices updated 7 days ago

483 airlines compared

80%+ AI score for best value

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

Today’s best flight deals from Seoul to Ko Samui

Explore current cheapest deals departing from Seoul to Ko Samui

2026-11-11 – 2026-11-17
SEL - Ko Samui
69% AI deal score
$339
$422
Round trip
2026-11-07 – 2026-11-15
SEL - Ko Samui
69% AI deal score
$348
$422
Round trip
2027-04-03 – 2027-04-20
SEL - Ko Samui
70% AI deal score
$321
$466
Round trip
2027-03-30 – 2027-04-20
SEL - Ko Samui
70% AI deal score
$324
$466
Round trip
2027-03-29 – 2027-04-20
SEL - Ko Samui
70% AI deal score
$324
$466
Round trip
2027-03-28 – 2027-04-20
SEL - Ko Samui
70% AI deal score
$324
$466
Round trip
2026-11-23 – 2026-11-27
SEL - Ko Samui
68% AI deal score
$349
$467
Round trip
2026-11-21 – 2026-11-29
SEL - Ko Samui
68% AI deal score
$322
$483
Round trip
2026-11-04 – 2026-11-24
SEL - Ko Samui
67% AI deal score
$319
$491
Round trip
2026-11-04 – 2026-11-15
SEL - Ko Samui
67% AI deal score
$336
$491
Round trip

Seoul to Ko Samui: Overview

Insights for flights from Seoul to Ko Samui

For travelers looking for cheap flights from Seoul to Ko Samui, May stands out as the most affordable month, with a median fare of $204. July also offers competitive pricing, with a median fare of $215. In contrast, December flights are significantly higher, with a median fare of $594.

Fares for this route typically range from $404–$734, with a median of $594. Right now, current fares are below the typical level. However, the share of recent fares classified as a good price is 0%, indicating that finding exceptional deals can be challenging.

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

A typical journey from Seoul to Ko Samui, including connections, takes approximately 17h 5m. This duration accounts for the stopovers common on this route, making it a substantial travel day. Given the connecting nature of these flights, planning for a longer travel time is advisable.

The distance between Seoul and Ko Samui is 4078 km, classifying this as a long-haul route. This considerable distance contributes to the extended flight times and the prevalence of connecting itineraries.

How much is a round trip from Seoul to Ko Samui

Regular price: $314 - $666

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 $314 and $666. The current lowest deal is $424 with Scoot for travel from Nov 11-Nov 15.

now $424

Low $314

High $666

The cheapest time to fly from Seoul to Ko Samui

The cheapest month to fly from Seoul to Koh Samui is May, with a median price of $204. The most expensive month is December, with a median price of $594. Prices are generally lower from May to July.

May

Cheapest

Flights from $204

December

Most Expensive

Flights from $594

May

Jul

Dec

Direct flights from Seoul to Ko Samui

Scoot

Bangkok Airways

China Eastern Airlines

MyTravel Airways

Last-minute flights going from Seoul to Ko Samui

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$352

$1,036

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$353

$1,036

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$451

$1,100

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$338

$1,102

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$338

$1,102

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$420

$1,103

One-way

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

1 night

Nov 7 - Nov 8

$435 → $467

3 nights

Dec 12 - Dec 15

$433 → $505

17%

6 nights

Nov 23 - Nov 29

$333 → $415

24%

6 nights

Jan 25 - Jan 31

$358 → $440

23%

Popular Airports to fly from Seoul to Ko Samui

Seoul - Ko Samui route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Seoul to Ko Samui are below the typical level at $424.

📅 Best time to fly

May is historically the cheapest month

Historically, May is the cheapest month to fly, with a median price of $204.

⏱️ Flight duration

Connecting flights average 17h 5m

Connecting flights from Seoul to Ko Samui typically average 17h 5m.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant for this route, with a median of 1 stopover.

🏆 Airline highlight

Scoot offers deals on this route

Scoot has 72 deals on this route, more than other airlines.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Seoul to Ko Samui are historically rare.

Seoul main airports to depart from

Incheon International (ICN)

Cheapest

Incheon International Airport offers flights to Ko Samui, with prices from 414 USD.

📍 ~48 km from Seoul city center (reachable by car or train).

💸 Flights from ~$414

Gimpo International (GMP)

Gimpo International Airport offers flights to Ko Samui, with prices from 529 USD.

📍 ~17 km from Seoul city center (reachable by car or train).

💸 Flights from ~$529

Ko Samui main airports to arrive at

Samui (USM)

Cheapest

Samui Airport is ideal for direct access to Ko Samui, offering convenience for your trip.

📍 ~7 km from Ko Samui (reachable by car)

💸 Flights from ~$418

Airports nearby Ko Samui used as alternative

Surat Thani International (URT)

Surat Thani International is a primary mainland gateway for Ko Samui travelers, often with lower flight costs.

📍 ~135 km from Ko Samui (requires a ferry crossing and bus transfer, approx. 3-4 hours total)

💸 Flights from ~$334

Business & First Class Flight Deals to Ko Samui

Discover luxury on the budget with premium cabin class on flights from Seoul to Ko Samui.

Elite

Best Elite deals to Ko Samui

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From ICN

Elite

Nov 04

Ko Samui, Thailand

88% AI deal score

$1,771

$1,226

Save $545

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 06

Ko Samui, Thailand

88% AI deal score

$1,803

$1,226

Save $577

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 06

Ko Samui, Thailand

88% AI deal score

$1,761

$1,228

Save $533

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 03

Ko Samui, Thailand

88% AI deal score

$1,805

$1,228

Save $577

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 04

Ko Samui, Thailand

88% AI deal score

$1,813

$1,230

Save $583

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 03

Ko Samui, Thailand

88% AI deal score

$1,815

$1,250

Save $565

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 05

Ko Samui, Thailand

88% AI deal score

$1,815

$1,250

Save $565

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 10

Ko Samui, Thailand

87% AI deal score

$1,727

$1,250

Save $477

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 08

Ko Samui, Thailand

87% AI deal score

$1,717

$1,250

Save $467

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 07

Ko Samui, Thailand

87% AI deal score

$1,752

$1,251

Save $501

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 04

Ko Samui, Thailand

86% AI deal score

$1,669

$1,226

Save $443

Shandong Airlines, +1

Business Class

From ICN

Elite

Nov 05

Ko Samui, Thailand

86% AI deal score

$1,654

$1,226

Save $428

Shandong Airlines, +1

Business Class

Frequently Asked Questions About Flights to Ko Samui

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison websites can help you compare options from various providers. Looking into flights with layovers may also present lower prices than direct routes.

Booking flights in advance often helps secure better prices, though the ideal booking window can vary. Prices may fluctuate, so monitoring fares over time can be beneficial. Mid-week bookings are sometimes associated with more favorable rates.

Comparing nearby airports for both your origin and destination can sometimes uncover more economical flight options. While it may add to travel time, the potential savings could be significant. Always factor in ground transportation costs and convenience when considering alternative airports.

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Flights to Ko Samui from other cities

Flights from Bangkok to Ko Samui Flights from Beijing to Ko Samui Flights from Ho Chi Minh City to Ko Samui Flights from Krabi to Ko Samui Flights from Melbourne to Ko Samui Flights from Singapore to Ko Samui

Seoul to Ko Samui: Overview

Insights for flights from Seoul to Ko Samui

How much is a round trip from Seoul to Ko Samui

Regular price: $314 - $666

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 $314 and $666. The current lowest deal is $424 with Scoot for travel from Nov 11-Nov 15.

now $424

Low $314

High $666

The cheapest time to fly from Seoul to Ko Samui

The cheapest month to fly from Seoul to Koh Samui is May, with a median price of $204. The most expensive month is December, with a median price of $594. Prices are generally lower from May to July.

May

Cheapest

Flights from $204

December

Most Expensive

Flights from $594

May

Jul

Dec

Direct flights from Seoul to Ko Samui

Scoot

Bangkok Airways

China Eastern Airlines

MyTravel Airways

Last-minute flights going from Seoul to Ko Samui

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$352

$1,036

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$353

$1,036

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$451

$1,100

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$338

$1,102

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$338

$1,102

One-way

Thu, Oct 29

⌛ Last-Minute

ICN - Ko Samui

Seoul (ICN) - Ko Samui (USM)

Thai Airways International

$420

$1,103

One-way

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

1 night

Nov 7 - Nov 8

$435 → $467

3 nights

Dec 12 - Dec 15

$433 → $505

17%

6 nights

Nov 23 - Nov 29

$333 → $415

24%

6 nights

Jan 25 - Jan 31

$358 → $440

23%

Popular Airports to fly from Seoul to Ko Samui

Seoul - Ko Samui route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Seoul to Ko Samui are below the typical level at $424.

📅 Best time to fly

May is historically the cheapest month

Historically, May is the cheapest month to fly, with a median price of $204.

⏱️ Flight duration

Connecting flights average 17h 5m

Connecting flights from Seoul to Ko Samui typically average 17h 5m.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant for this route, with a median of 1 stopover.

🏆 Airline highlight

Scoot offers deals on this route

Scoot has 72 deals on this route, more than other airlines.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Seoul to Ko Samui are historically rare.

Seoul main airports to depart from

Incheon International (ICN)

Cheapest

Incheon International Airport offers flights to Ko Samui, with prices from 414 USD.

📍 ~48 km from Seoul city center (reachable by car or train).

💸 Flights from ~$414

Gimpo International (GMP)

Gimpo International Airport offers flights to Ko Samui, with prices from 529 USD.

📍 ~17 km from Seoul city center (reachable by car or train).

💸 Flights from ~$529

Ko Samui main airports to arrive at

Samui (USM)

Cheapest

Samui Airport is ideal for direct access to Ko Samui, offering convenience for your trip.

📍 ~7 km from Ko Samui (reachable by car)

💸 Flights from ~$418

Airports nearby Ko Samui used as alternative

Surat Thani International (URT)

Surat Thani International is a primary mainland gateway for Ko Samui travelers, often with lower flight costs.

Ko Samui, Thailand

86% AI deal score

$1,654

$1,226

Save $428

Shandong Airlines, +1

Business Class

Frequently Asked Questions About Flights to Ko Samui

Cheap Flights from Seoul to Ko Samui

Today’s best flight deals from Seoul to Ko Samui

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 below the typical level

May is historically the cheapest month

Connecting flights average 17h 5m

Connecting flights are dominant

Scoot offers deals on this route

Deals for this route are rare

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

Nov 04

Nov 06

Nov 06

Nov 03

Nov 04

Nov 03

Nov 05

Nov 10

Nov 08

Nov 07

Nov 04

Nov 05

Frequently Asked Questions About Flights to Ko Samui

How can I find cheap 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?

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

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

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

Related routes

More routes from Seoul

Flights to Ko Samui from other cities

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 below the typical level

May is historically the cheapest month

Connecting flights average 17h 5m

Connecting flights are dominant

Scoot offers deals on this route

Deals for this route are rare

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

Nov 04

Nov 06

Nov 06

Nov 03

Nov 04

Nov 03

Nov 05

Nov 10

Nov 08

Nov 07

Nov 04

Nov 05

Frequently Asked Questions About Flights to Ko Samui

How can I find cheap 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?