Need help booking?
Unpublished phone-only deals available
ONO to GRM: distance & flight time
Ontario (Ontario Municipal Airport) → Grand Marais (Grand Marais Cook County Airport)
1,300 mi
2,092 km · 1,130 nm
3h 18m
estimated nonstop flight time
+1h
time difference · heading east
See live ONO→GRM fares Phone-only fares on this route — call free
Flight time details
1,300 miles nonstop takes roughly 3h 18m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ONO — Ontario Municipal Airport · Ontario, 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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 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 ONO from GRM?
The flight distance from Ontario (ONO) to Grand Marais (GRM) is 1,300 miles (2,092 km, 1,130 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to GRM?
A nonstop flight takes about 3h 18m 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 Ontario and Grand Marais?
Grand Marais is 1 hour ahead of Ontario.
What is the cheapest way to fly from ONO to GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–GRM that never appear on search engines, with no booking fees.