Distance From Central Wyoming Regional Airport to Yokota Air Base, RIW - OKO Distance

The distance from Central Wyoming Regional Airport (RIW) to Yokota Air Base (OKO) is 5522 miles or 8887 kilometers or 4796 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 Riverton ( United States ) to Fussa ( Japan )?

A one-way nonstop (direct) flight between Riverton and Fussa takes around 12 hours 41 minutes.

Estimated flight time from Central Wyoming Regional Airport, Riverton, United States to Yokota Air Base, Fussa, Japan is 12 hours 41 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 • RIW - OKO

Kilometers		8887 km
Statute Miles		5522 miles
Nautical Miles		4796 nm
Avg. Time of Flight		12 hours 41 minutes

Central Wyoming Regional Airport to Yokota Air Base Flight Route Map - RIW to OKO Flight Path

Location of Central Wyoming Regional Airport & Yokota Air Base is given below.
Click the map to view Riverton to Fussa nonstop flight path and travel direction.

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

Nonstop flight route between Riverton, United States and Fussa, Japan.

Time Difference Between the Airports • RIW - OKO

Time difference between Riverton (United States) and Fussa (Japan) is 16 Hours.
Fussa time is 16 Hours ahead of Riverton.

Location	Local Time
Riverton (United States)	2025-12-16, 00:49:51 MST
Fussa (Japan)	2025-12-16, 16:49:51 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

Central Wyoming Regional Airport (RIW / KRIW) Riverton, United States

Destination

Yokota Air Base (OKO / RJTY) Fussa, Japan