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

There are many flights that can get you from Incheon Intl Airport to Ko Samui in 19h 40m. Fly via Cathay Pacific to get the fastest option. There are 4073 km between Incheon Intl Airport and Ko Samui.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 mm per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What is the cheapest time of day to fly from ICN to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Incheon Intl Airport to Ko Samui as you normally would.

What airport do you fly into for flights to Ko Samui from Incheon Intl?

If you book a flight to Ko Samui from Incheon Intl, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 3.3 km from the centre of Ko Samui. There are 0 flights from Incheon Intl to Ko Samui per day from 0 different airlines.

Can I find deals for flights from Incheon Intl to Ko Samui that include hotel bookings?

Yes. In addition to deals on Incheon Intl to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Incheon Intl to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to Ko Samui.

Can I find deals for business class flights from Incheon Intl to Ko Samui?

Yes. Cheapflights offers flight deals from Incheon Intl to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 390+ Cheap Flights from Incheon Intl Airport to Ko Samui

Cheap flight deals from Incheon Intl to Ko Samui

Enter your travel dates to find the best prices.

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Cheapest flights from Incheon Intl to Ko Samui
Explore the most affordable flight options available from Incheon Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Thu 19/111:55 a.m. -

1 stop19h 40m

Fri 27/1111:40 a.m. -

1 stop11h 00m

Deal found 2/11C$ 1,206

Fri 27/118:50 a.m. -

1 stop25h 10m

Tue 1/1212:00 p.m. -

1 stop17h 25m

Deal found 31/10C$ 1,222

Sat 21/111:55 a.m. -

1 stop19h 40m

Wed 25/1111:40 a.m. -

1 stop11h 00m

Deal found 31/10C$ 1,227

Fri 27/1111:40 a.m. -

2 stops21h 30m

Tue 1/127:40 p.m. -

2 stops21h 05m

Deal found 31/10C$ 1,300

Fri 27/113:00 p.m. -

2 stops18h 10m

Tue 1/1211:40 a.m. -

1 stop11h 00m

Deal found 31/10C$ 1,349

Sat 14/111:55 a.m. -

1 stop19h 40m

Sat 21/117:55 a.m. -

2 stops14h 45m

Deal found 2/11C$ 1,526

Thu 19/111:55 a.m. -

1 stop19h 40m

Sat 28/1110:20 a.m. -

2 stops24h 25m

Deal found 4/11C$ 1,635

Find flight deals from Incheon Intl to Ko Samui

Round-trip from	C$ 1,206
One-way from	C$ 390
Popular in	February
Cheapest in	August
Average price	C$ 769

Cathay Pacific
19/11-27/11
2 total stops
30h 40m total
Incheon to Ko Samui

Search Deals

17/4-31/12
2 total stops
22h 30m total
Incheon to Ko Samui

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (C$ 468 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 64 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Incheon Intl Airport to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sun 18/4

11:00 p.m.-6:50 p.m.

2 stops21h 50m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 394

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Thu 19/11

1:55 a.m.-7:35 p.m.

1 stop19h 40m

Ko Samui

Fri 27/11

11:40 a.m.-12:40 a.m.

1 stop11h 00m

C$ 1,206

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sat 14/11

1:55 a.m.-7:35 p.m.

1 stop19h 40m

Ko Samui

Sat 21/11

7:55 a.m.-12:40 a.m.

2 stops14h 45m

C$ 1,526

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sat 21/11

3:00 p.m.-7:50 p.m.

3 stops30h 50m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 1,945

Quickest round-trip

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Thu 19/11

1:55 a.m.-7:50 p.m.

3 stops19h 55m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 1,949

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sun 18/4

8:00 a.m.-7:10 a.m.

3 stops25h 10m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 1,968

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sat 17/4

8:00 a.m.-8:15 a.m.

3 stops26h 15m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 1,968

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Mon 14/12

1:55 a.m.-7:50 p.m.

3 stops19h 55m

Ko Samui

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 2,209

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Sat 21/11

12:10 a.m.-1:30 p.m.

2 stops15h 20m

Ko Samui

Sat 28/11

7:55 a.m.-12:45 p.m.

3 stops26h 50m

C$ 3,749

IncheonKo Samui

ICN Incheon Intl - USM Ko Samui

ICNUSM

Incheon Intl

Fri 20/11

12:10 a.m.-3:20 p.m.

2 stops17h 10m

Ko Samui

Sat 28/11

7:55 a.m.-12:45 p.m.

3 stops26h 50m

C$ 3,827

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Incheon Intl to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Incheon Intl with our price prediction graph.

ICN-USM

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Ko Samui

How often are flights from Incheon to Ko Samui delayed?

About 17% of weekly flights between Incheon and Ko Samui have experienced delays in the past year, with the average delay time being 81 minutes.

What is the most punctual flight time for Incheon to Ko Samui flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Incheon to Ko Samui flights?

Over the past year, Korean Air has had the lowest number of delays on this route, with just 17% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Ko Samui from Incheon Intl?
If you book a flight to Ko Samui from Incheon Intl, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 3.3 km from the centre of Ko Samui. There are 0 flights from Incheon Intl to Ko Samui per day from 0 different airlines.
How long is the flight from Incheon Intl Airport to Ko Samui?
There are many flights that can get you from Incheon Intl Airport to Ko Samui in 19h 40m. Fly via Cathay Pacific to get the fastest option. There are 4073 km between Incheon Intl Airport and Ko Samui.
Can I find deals for flights from Incheon Intl to Ko Samui that include hotel bookings?
Yes. In addition to deals on Incheon Intl to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Incheon Intl to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to Ko Samui.
Can I find deals for business class flights from Incheon Intl to Ko Samui?
Yes. Cheapflights offers flight deals from Incheon Intl to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flights from Incheon Intl Airport to Ko Samui from C$ 390

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Incheon Intl to Ko Samui

Cheapest flights from Incheon Intl to Ko SamuiExplore the most affordable flight options available from Incheon Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Explore the most affordable flight options available from Incheon Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Incheon Intl to Ko SamuiDiscover carefully curated flight deals from Incheon Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Discover carefully curated flight deals from Incheon Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Incheon Intl to Ko SamuiDiscover last-minute flight deals from Incheon Intl to Ko Samui. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Incheon Intl to Ko Samui. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Incheon Intl to Ko SamuiSearch for one-way flight options from Incheon Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Incheon Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Incheon Intl to Ko Samui

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Incheon Intl Airport to Ko Samui that are best for you.

Best time to book a flight from Incheon Intl to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Incheon Intl with our price prediction graph.

Cheapflights Insights

How often are flights from Incheon to Ko Samui delayed?

About 17% of weekly flights between Incheon and Ko Samui have experienced delays in the past year, with the average delay time being 81 minutes.

What is the most punctual flight time for Incheon to Ko Samui flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Incheon to Ko Samui flights?

Over the past year, Korean Air has had the lowest number of delays on this route, with just 17% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Ko Samui from Incheon Intl?

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

Can I find deals for flights from Incheon Intl to Ko Samui that include hotel bookings?

How can I find direct flights from Incheon Intl to Ko Samui?

Can I find deals for business class flights from Incheon Intl to Ko Samui?

Travelling to a place near Ko Samui?

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Alternative routes for Incheon Intl to Ko Samui

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Complete your trip

Complete your trip to Ko Samui by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Thailand

Book a non-stop flight to one of these other cities located in Thailand.

Search flights from Incheon Intl to Ko Samui by cabin class

Find flights from Incheon Intl to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2026.

Incheon Intl and Ko Samui flights

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Cheapest flights from Incheon Intl to Ko Samui
Explore the most affordable flight options available from Incheon Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Incheon Intl to Ko Samui
Discover carefully curated flight deals from Incheon Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Incheon Intl to Ko Samui
Discover last-minute flight deals from Incheon Intl to Ko Samui. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Incheon Intl to Ko Samui
Search for one-way flight options from Incheon Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.