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GRM to OIM: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Oshima (Oshima Airport)
5,955 mi
9,583 km · 5,174 nm
12h 9m
estimated nonstop flight time
+14h
time difference · heading northwest
See live GRM→OIM fares Phone-only fares on this route — call free
Flight time details
5,955 miles nonstop takes roughly 12h 9m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- OIM — Oshima Airport · Oshima, Japan
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 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
Near OIM
- HND · Tokyo Haneda International Airport58 mi away
- NJA · Atsugi Naval Air Facility47 mi away
- NRT · Narita International Airport89 mi away
- MYE · Miyakejima Airport50 mi away
Frequently asked questions
How far is GRM from OIM?
The flight distance from Grand Marais (GRM) to Oshima (OIM) is 5,955 miles (9,583 km, 5,174 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to OIM?
A nonstop flight takes about 12h 9m 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 Grand Marais and Oshima?
Oshima is 14 hours ahead of Grand Marais.
What is the cheapest way to fly from GRM to OIM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–OIM that never appear on search engines, with no booking fees.