Distance From Lost River Airport to Jeju International Airport

The distance from Lost River Airport () to Jeju International Airport (CJU) is 5425 miles or 8730 kilometers or 4711 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 Mazama ( United States ) to Jeju City ( South Korea )?

A one-way nonstop (direct) flight between Mazama and Jeju City takes around 12 hours 28 minutes.

Estimated flight time from Lost River Airport, Mazama, United States to Jeju International Airport, Jeju City, South Korea is 12 hours 28 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		8730 km
Statute Miles		5425 miles
Nautical Miles		4711 nm
Avg. Time of Flight		12 hours 28 minutes

Lost River Airport to Jeju International Airport Flight Route Map - to CJU Flight Path

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

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

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

Time Difference Between the Airports • - CJU

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

Location	Local Time
Mazama (United States)	2026-08-08, 00:00:06 MDT
Jeju City (South Korea)	2026-08-08, 15:00:06 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

Lost River Airport ( / ) Mazama, United States

Destination

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