Distance From Merck/Upper Gwynedd Heliport to Incheon International Airport

The distance from Merck/Upper Gwynedd Heliport () to Incheon International Airport (ICN) is 6896 miles or 11097 kilometers or 5988 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 North Wales ( United States ) to Seoul ( South Korea )?

A one-way nonstop (direct) flight between North Wales and Seoul takes around 15 hours 51 minutes.

Estimated flight time from Merck/Upper Gwynedd Heliport, North Wales, United States to Incheon International Airport, Seoul, South Korea is 15 hours 51 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 • - ICN

Kilometers		11097 km
Statute Miles		6896 miles
Nautical Miles		5988 nm
Avg. Time of Flight		15 hours 51 minutes

Merck/Upper Gwynedd Heliport to Incheon International Airport Flight Route Map - to ICN Flight Path

Location of Merck/Upper Gwynedd Heliport & Incheon International Airport is given below.
Click the map to view North Wales to Seoul nonstop flight path and travel direction.

Click to see flight route on Google Map between North Wales, United States and Seoul, South Korea. .

Nonstop flight route between North Wales, United States and Seoul, South Korea.

Time Difference Between the Airports • - ICN

Time difference between North Wales (United States) and Seoul (South Korea) is 13 Hours.
Seoul time is 13 Hours ahead of North Wales.

Location	Local Time
North Wales (United States)	2026-05-07, 12:16:27 EDT
Seoul (South Korea)	2026-05-08, 01:16:27 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

Merck/Upper Gwynedd Heliport ( / PN44) North Wales, United States

Destination

Incheon International Airport (ICN / RKSI) Seoul, South Korea