Distance From Samui Airport to Gimpo International Airport, USM - GMP Distance

The distance from Samui Airport (USM) to Gimpo International Airport (GMP) is 2552 miles or 4107 kilometers or 2216 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Na Thon (Ko Samui Island) ( Thailand ) to Seoul ( South Korea )?

A one-way nonstop (direct) flight between Na Thon (Ko Samui Island) and Seoul takes around 5 hours 52 minutes.

Estimated flight time from Samui Airport, Na Thon (Ko Samui Island), Thailand to Gimpo International Airport, Seoul, South Korea is 5 hours 52 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • USM - GMP

Kilometers		4107 km
Statute Miles		2552 miles
Nautical Miles		2216 nm
Avg. Time of Flight		5 hours 52 minutes

Samui Airport to Gimpo International Airport Flight Route Map - USM to GMP Flight Path

Location of Samui Airport & Gimpo International Airport is given below.
Click the map to view Na Thon (Ko Samui Island) to Seoul nonstop flight path and travel direction.

Click to see flight route on Google Map between Na Thon (Ko Samui Island), Thailand and Seoul, South Korea. .

Nonstop flight route between Na Thon (Ko Samui Island), Thailand and Seoul, South Korea.

Time Difference Between the Airports • USM - GMP

Time difference between Na Thon (Ko Samui Island) (Thailand) and Seoul (South Korea) is 2 Hours.
Seoul time is 2 Hours ahead of Na Thon (Ko Samui Island).

Location	Local Time
Na Thon (Ko Samui Island) (Thailand)	2026-09-15, 09:01:33 +07
Seoul (South Korea)	2026-09-15, 11:01:33 KST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Samui Airport (USM / VTSM) Na Thon (Ko Samui Island), Thailand

Destination

Gimpo International Airport (GMP / RKSS) Seoul, South Korea