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IAD to GNB: distance & flight time
Washington (Washington Dulles International Airport) → Grenoble (Grenoble-Isère Airport)
4,073 mi
6,554 km · 3,539 nm
8h 27m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→GNB fares Phone-only fares on this route — call free
Flight time details
4,073 miles nonstop takes roughly 8h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, 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 IAD
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 IAD from GNB?
The flight distance from Washington (IAD) to Grenoble (GNB) is 4,073 miles (6,554 km, 3,539 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to GNB?
A nonstop flight takes about 8h 27m 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 Washington and Grenoble?
Grenoble is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to GNB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–GNB that never appear on search engines, with no booking fees.