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OSH to GRM: distance & flight time
Oshkosh (Wittman Regional Airport) → Grand Marais (Grand Marais Cook County Airport)
280 mi
451 km · 244 nm
1h 12m
estimated nonstop flight time
Same time
time difference · heading north
See live OSH→GRM fares Phone-only fares on this route — call free
Flight time details
280 miles nonstop takes roughly 1h 12m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OSH — Wittman Regional Airport · Oshkosh, United States
- 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 OSH
- FLD · Fond du Lac County Airport15 mi away
- ATW · Appleton International Airport19 mi away
- SBM · Sheboygan County Memorial Airport38 mi away
- GRB · Austin Straubel International Airport41 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 OSH from GRM?
The flight distance from Oshkosh (OSH) to Grand Marais (GRM) is 280 miles (451 km, 244 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSH to GRM?
A nonstop flight takes about 1h 12m 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 cheapest way to fly from OSH to GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSH–GRM that never appear on search engines, with no booking fees.