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GNB to ALN: distance & flight time
Grenoble (Grenoble-Isère Airport) → Alton/St Louis (St Louis Regional Airport)
4,609 mi
7,417 km · 4,005 nm
9h 30m
estimated nonstop flight time
—
time difference · heading northwest
See live GNB→ALN fares Phone-only fares on this route — call free
Flight time details
4,609 miles nonstop takes roughly 9h 30m gate to gate, flying northwest. 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
- GNB — Grenoble-Isère Airport · Grenoble, France
- ALN — St Louis Regional Airport · Alton/St Louis, 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 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
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is GNB from ALN?
The flight distance from Grenoble (GNB) to Alton/St Louis (ALN) is 4,609 miles (7,417 km, 4,005 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GNB to ALN?
A nonstop flight takes about 9h 30m 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 GNB to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GNB–ALN that never appear on search engines, with no booking fees.