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GRM to ACH: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Altenrhein (St Gallen Altenrhein Airport)
4,290 mi
6,904 km · 3,728 nm
8h 53m
estimated nonstop flight time
+7h
time difference · heading northeast
See live GRM→ACH fares Phone-only fares on this route — call free
Flight time details
4,290 miles nonstop takes roughly 8h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- ACH — St Gallen Altenrhein Airport · Altenrhein, Switzerland
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 ACH
- HOH · Hohenems-Dornbirn Airport9 mi away
- FDH · Friedrichshafen Airport13 mi away
- ZRH · Zürich Airport47 mi away
- FMM · Memmingen Allgau Airport47 mi away
Frequently asked questions
How far is GRM from ACH?
The flight distance from Grand Marais (GRM) to Altenrhein (ACH) is 4,290 miles (6,904 km, 3,728 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to ACH?
A nonstop flight takes about 8h 53m 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 Altenrhein?
Altenrhein is 7 hours ahead of Grand Marais.
What is the cheapest way to fly from GRM to ACH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–ACH that never appear on search engines, with no booking fees.