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GTF to GNB: distance & flight time
Great Falls (Great Falls International Airport) → Grenoble (Grenoble-Isère Airport)
4,966 mi
7,992 km · 4,315 nm
10h 12m
estimated nonstop flight time
+8h
time difference · heading northeast
See live GTF→GNB fares Phone-only fares on this route — call free
Flight time details
4,966 miles nonstop takes roughly 10h 12m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- GNB — Grenoble-Isère Airport · Grenoble, France
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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Near GNB
- LYS · Lyon Saint-Exupéry Airport28 mi away
- LYN · Lyon-Bron Airport31 mi away
- CMF · Chambéry-Savoie Airport33 mi away
- VAF · Valence-Chabeuil Airport35 mi away
Frequently asked questions
How far is GTF from GNB?
The flight distance from Great Falls (GTF) to Grenoble (GNB) is 4,966 miles (7,992 km, 4,315 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to GNB?
A nonstop flight takes about 10h 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 time difference between Great Falls and Grenoble?
Grenoble is 8 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to GNB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–GNB that never appear on search engines, with no booking fees.