Distance From Gray Army Air Field to Yokota Air Base, GRF - OKO Distance

The distance from Gray Army Air Field (GRF) to Yokota Air Base (OKO) is 4802 miles or 7728 kilometers or 4170 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 Fort Lewis/Tacoma ( United States ) to Fussa ( Japan )?

A one-way nonstop (direct) flight between Fort Lewis/Tacoma and Fussa takes around 11 hours 2 minutes.

Estimated flight time from Gray Army Air Field, Fort Lewis/Tacoma, United States to Yokota Air Base, Fussa, Japan is 11 hours 2 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 • GRF - OKO

Kilometers		7728 km
Statute Miles		4802 miles
Nautical Miles		4170 nm
Avg. Time of Flight		11 hours 2 minutes

Gray Army Air Field to Yokota Air Base Flight Route Map - GRF to OKO Flight Path

Location of Gray Army Air Field & Yokota Air Base is given below.
Click the map to view Fort Lewis/Tacoma to Fussa nonstop flight path and travel direction.

Click to see flight route on Google Map between Fort Lewis/Tacoma, United States and Fussa, Japan. .

Nonstop flight route between Fort Lewis/Tacoma, United States and Fussa, Japan.

Time Difference Between the Airports • GRF - OKO

Time difference between Fort Lewis/Tacoma (United States) and Fussa (Japan) is 16 Hours.
Fussa time is 16 Hours ahead of Fort Lewis/Tacoma.

Location	Local Time
Fort Lewis/Tacoma (United States)	2025-12-15, 18:39:55 MST
Fussa (Japan)	2025-12-16, 10:39:55 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

Gray Army Air Field (GRF / KGRF) Fort Lewis/Tacoma, United States

Destination

Yokota Air Base (OKO / RJTY) Fussa, Japan