Need help booking?
Unpublished phone-only deals available
FSI to GUU: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Grundarfjordur (Grundarfjörður Airport)
3,650 mi
5,874 km · 3,172 nm
7h 37m
estimated nonstop flight time
—
time difference · heading northeast
See live FSI→GUU fares Phone-only fares on this route — call free
Flight time details
3,650 miles nonstop takes roughly 7h 37m gate to gate, flying northeast. 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
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- GUU — Grundarfjörður Airport · Grundarfjordur, Iceland
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 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
Near GUU
- PFJ · Patreksfjörður Airport44 mi away
- BIU · Bildudalur Airport46 mi away
- RKV · Reykjavik Airport71 mi away
- KEF · Keflavik International Airport72 mi away
Frequently asked questions
How far is FSI from GUU?
The flight distance from Fort Sill (FSI) to Grundarfjordur (GUU) is 3,650 miles (5,874 km, 3,172 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to GUU?
A nonstop flight takes about 7h 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 cheapest way to fly from FSI to GUU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–GUU that never appear on search engines, with no booking fees.