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GRO to FSI: distance & flight time
Gerona (Girona Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
5,172 mi
8,324 km · 4,495 nm
10h 37m
estimated nonstop flight time
-7h
time difference · heading northwest
See live GRO→FSI fares Phone-only fares on this route — call free
Flight time details
5,172 miles nonstop takes roughly 10h 37m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- GRO — Girona Airport · Gerona, Spain
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 GRO
- BCN · Barcelona International Airport55 mi away
- QSA · Sabadell Airport43 mi away
- PGF · Perpignan-Rivesaltes (Llabanère) Airport58 mi away
- LEU · Pirineus - la Seu d'Urgel Airport76 mi away
Near FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Frequently asked questions
How far is GRO from FSI?
The flight distance from Gerona (GRO) to Fort Sill (FSI) is 5,172 miles (8,324 km, 4,495 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRO to FSI?
A nonstop flight takes about 10h 37m 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 Gerona and Fort Sill?
Fort Sill is 7 hours behind Gerona.
What is the cheapest way to fly from GRO to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRO–FSI that never appear on search engines, with no booking fees.