Distance From Castlerock Airstrip to Gimpo International Airport

The distance from Castlerock Airstrip () to Gimpo International Airport (GMP) is 5470 miles or 8802 kilometers or 4750 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 Castlerock (Ulster) ( United Kingdom ) to Seoul ( South Korea )?

A one-way nonstop (direct) flight between Castlerock (Ulster) and Seoul takes around 12 hours 34 minutes.

Estimated flight time from Castlerock Airstrip, Castlerock (Ulster), United Kingdom to Gimpo International Airport, Seoul, South Korea is 12 hours 34 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 • - GMP

Kilometers		8802 km
Statute Miles		5470 miles
Nautical Miles		4750 nm
Avg. Time of Flight		12 hours 34 minutes

Castlerock Airstrip to Gimpo International Airport Flight Route Map - to GMP Flight Path

Location of Castlerock Airstrip & Gimpo International Airport is given below.
Click the map to view Castlerock (Ulster) to Seoul nonstop flight path and travel direction.

Click to see flight route on Google Map between Castlerock (Ulster), United Kingdom and Seoul, South Korea. .

Nonstop flight route between Castlerock (Ulster), United Kingdom and Seoul, South Korea.

Time Difference Between the Airports • - GMP

Time difference between Castlerock (Ulster) (United Kingdom) and Seoul (South Korea) is 8 Hours.
Seoul time is 8 Hours ahead of Castlerock (Ulster).

Location	Local Time
Castlerock (Ulster) (United Kingdom)	2026-05-02, 12:38:50 BST
Seoul (South Korea)	2026-05-02, 20:38:50 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

Castlerock Airstrip ( / ) Castlerock (Ulster), United Kingdom

Destination

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