Distance From Grand Marais Cook County Airport to Muan International Airport, GRM - MWX Distance

The distance from Grand Marais Cook County Airport (GRM) to Muan International Airport (MWX) is 6280 miles or 10106 kilometers or 5453 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 Grand Marais ( United States ) to Piseo-ri (Muan) ( South Korea )?

A one-way nonstop (direct) flight between Grand Marais and Piseo-ri (Muan) takes around 14 hours 26 minutes.

Estimated flight time from Grand Marais Cook County Airport, Grand Marais, United States to Muan International Airport, Piseo-ri (Muan), South Korea is 14 hours 26 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 • GRM - MWX

Kilometers		10106 km
Statute Miles		6280 miles
Nautical Miles		5453 nm
Avg. Time of Flight		14 hours 26 minutes

Grand Marais Cook County Airport to Muan International Airport Flight Route Map - GRM to MWX Flight Path

Location of Grand Marais Cook County Airport & Muan International Airport is given below.
Click the map to view Grand Marais to Piseo-ri (Muan) nonstop flight path and travel direction.

Click to see flight route on Google Map between Grand Marais, United States and Piseo-ri (Muan), South Korea. .

Nonstop flight route between Grand Marais, United States and Piseo-ri (Muan), South Korea.

Time Difference Between the Airports • GRM - MWX

Time difference between Grand Marais (United States) and Piseo-ri (Muan) (South Korea) is 14 Hours.
Piseo-ri (Muan) time is 14 Hours ahead of Grand Marais.

Location	Local Time
Grand Marais (United States)	2026-03-21, 23:59:13 CDT
Piseo-ri (Muan) (South Korea)	2026-03-22, 13:59:13 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

Grand Marais Cook County Airport (GRM / KCKC) Grand Marais, United States

Destination

Muan International Airport (MWX / RKJB) Piseo-ri (Muan), South Korea