Distance From Semnan Municipal Airport to Jeju International Airport, SNX - CJU Distance

The distance from Semnan Municipal Airport (SNX) to Jeju International Airport (CJU) is 4056 miles or 6527 kilometers or 3522 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 Semnan ( Iran ) to Jeju City ( South Korea )?

A one-way nonstop (direct) flight between Semnan and Jeju City takes around 9 hours 19 minutes.

Estimated flight time from Semnan Municipal Airport, Semnan, Iran to Jeju International Airport, Jeju City, South Korea is 9 hours 19 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 • SNX - CJU

Kilometers		6527 km
Statute Miles		4056 miles
Nautical Miles		3522 nm
Avg. Time of Flight		9 hours 19 minutes

Semnan Municipal Airport to Jeju International Airport Flight Route Map - SNX to CJU Flight Path

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

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

Nonstop flight route between Semnan, Iran and Jeju City, South Korea.

Time Difference Between the Airports • SNX - CJU

Time difference between Semnan (Iran) and Jeju City (South Korea) is 5 Hours 30 Minutes.
Jeju City time is 5 Hours 30 Minutes ahead of Semnan.

Location	Local Time
Semnan (Iran)	2026-10-28, 22:08:17 +0330
Jeju City (South Korea)	2026-10-29, 03:38:17 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

Semnan Municipal Airport (SNX / OIIS) Semnan, Iran

Destination

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