Distance From Grand Marais Cook County Airport to Yokota Air Base, GRM - OKO Distance

The distance from Grand Marais Cook County Airport (GRM) to Yokota Air Base (OKO) is 5898 miles or 9491 kilometers or 5122 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 Fussa ( Japan )?

A one-way nonstop (direct) flight between Grand Marais and Fussa takes around 13 hours 33 minutes.

Estimated flight time from Grand Marais Cook County Airport, Grand Marais, United States to Yokota Air Base, Fussa, Japan is 13 hours 33 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 - OKO

Kilometers		9491 km
Statute Miles		5898 miles
Nautical Miles		5122 nm
Avg. Time of Flight		13 hours 33 minutes

Grand Marais Cook County Airport to Yokota Air Base Flight Route Map - GRM to OKO Flight Path

Location of Grand Marais Cook County Airport & Yokota Air Base is given below.
Click the map to view Grand Marais to Fussa nonstop flight path and travel direction.

Click to see flight route on Google Map between Grand Marais, United States and Fussa, Japan. .

Nonstop flight route between Grand Marais, United States and Fussa, Japan.

Time Difference Between the Airports • GRM - OKO

Time difference between Grand Marais (United States) and Fussa (Japan) is 15 Hours.
Fussa time is 15 Hours ahead of Grand Marais.

Location	Local Time
Grand Marais (United States)	2025-12-16, 02:54:26 CST
Fussa (Japan)	2025-12-16, 17:54:26 JST

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

Yokota Air Base (OKO / RJTY) Fussa, Japan