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FNL to GRS: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Grosseto (Grosseto Air Base)
5,442 mi
8,758 km · 4,729 nm
11h 8m
estimated nonstop flight time
+8h
time difference · heading northeast
See live FNL→GRS fares Phone-only fares on this route — call free
Flight time details
5,442 miles nonstop takes roughly 11h 8m 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
- FNL — Northern Colorado Regional Airport · Fort Collins, United States
- GRS — Grosseto Air Base · Grosseto, Italy
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 FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 mi away
Near GRS
- SAY · Siena-Ampugnano Airport36 mi away
- EBA · Marina Di Campo Airport42 mi away
- FCO · Leonardo da Vinci–Fiumicino Airport89 mi away
- PSA · Pisa International Airport72 mi away
Frequently asked questions
How far is FNL from GRS?
The flight distance from Fort Collins (FNL) to Grosseto (GRS) is 5,442 miles (8,758 km, 4,729 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to GRS?
A nonstop flight takes about 11h 8m 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 Fort Collins and Grosseto?
Grosseto is 8 hours ahead of Fort Collins.
What is the cheapest way to fly from FNL to GRS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–GRS that never appear on search engines, with no booking fees.