Distance From Kostomuksha Airport to Jeju International Airport

The distance from Kostomuksha Airport () to Jeju International Airport (CJU) is 4315 miles or 6943 kilometers or 3747 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.

---

How long does it take to travel from Kostomuksha ( Russia ) to Jeju City ( South Korea )?

A one-way nonstop (direct) flight between Kostomuksha and Jeju City takes around 9 hours 55 minutes.

Estimated flight time from Kostomuksha Airport, Kostomuksha, Russia to Jeju International Airport, Jeju City, South Korea is 9 hours 55 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 • - CJU

Kilometers		6943 km
Statute Miles		4315 miles
Nautical Miles		3747 nm
Avg. Time of Flight		9 hours 55 minutes

Kostomuksha Airport to Jeju International Airport Flight Route Map - to CJU Flight Path

Location of Kostomuksha Airport & Jeju International Airport is given below.
Click the map to view Kostomuksha to Jeju City nonstop flight path and travel direction.

Click to see flight route on Google Map between Kostomuksha, Russia and Jeju City, South Korea. .

Nonstop flight route between Kostomuksha, Russia and Jeju City, South Korea.

Time Difference Between the Airports • - CJU

Time difference between Kostomuksha (Russia) and Jeju City (South Korea) is 6 Hours.
Jeju City time is 6 Hours ahead of Kostomuksha.

Location	Local Time
Kostomuksha (Russia)	2026-09-13, 17:58:45 MSK
Jeju City (South Korea)	2026-09-13, 23:58:45 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

Kostomuksha Airport ( / ) Kostomuksha, Russia

Destination

Jeju International Airport (CJU / RKPC) Jeju City, South Korea