Distance From Star Valley Ranch Airport to Jeju International Airport

The distance from Star Valley Ranch Airport () to Jeju International Airport (CJU) is 6028 miles or 9701 kilometers or 5235 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 Thayne ( United States ) to Jeju City ( South Korea )?

A one-way nonstop (direct) flight between Thayne and Jeju City takes around 13 hours 51 minutes.

Estimated flight time from Star Valley Ranch Airport, Thayne, United States to Jeju International Airport, Jeju City, South Korea is 13 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 • - CJU

Kilometers		9701 km
Statute Miles		6028 miles
Nautical Miles		5235 nm
Avg. Time of Flight		13 hours 51 minutes

Star Valley Ranch Airport to Jeju International Airport Flight Route Map - to CJU Flight Path

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

Click to see flight route on Google Map between Thayne, United States and Jeju City, South Korea. .

Nonstop flight route between Thayne, United States and Jeju City, South Korea.

Time Difference Between the Airports • - CJU

Time difference between Thayne (United States) and Jeju City (South Korea) is 15 Hours.
Jeju City time is 15 Hours ahead of Thayne.

Location	Local Time
Thayne (United States)	2026-05-01, 02:07:14 MDT
Jeju City (South Korea)	2026-05-01, 17:07:14 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

Star Valley Ranch Airport ( / WY39) Thayne, United States

Destination

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