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OKO to GRM: distance & flight time
Yokota (Yokota Air Base) → Grand Marais (Grand Marais Cook County Airport)
5,898 mi
9,491 km · 5,125 nm
12h 2m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OKO→GRM fares Phone-only fares on this route — call free
Flight time details
5,898 miles nonstop takes roughly 12h 2m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OKO — Yokota Air Base · Yokota, Japan
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near OKO
- HND · Tokyo Haneda International Airport28 mi away
- NRT · Narita International Airport58 mi away
- NJA · Atsugi Naval Air Facility21 mi away
- IBR · Hyakuri Airport67 mi away
Near GRM
- YQT · Thunder Bay Airport61 mi away
- LYU · Ely Municipal Airport67 mi away
- YIB · Atikokan Municipal Airport87 mi away
- CMX · Houghton County Memorial Airport100 mi away
Frequently asked questions
How far is OKO from GRM?
The flight distance from Yokota (OKO) to Grand Marais (GRM) is 5,898 miles (9,491 km, 5,125 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKO to GRM?
A nonstop flight takes about 12h 2m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Yokota and Grand Marais?
Grand Marais is 14 hours behind Yokota.
What is the cheapest way to fly from OKO to GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKO–GRM that never appear on search engines, with no booking fees.