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ATH to FSI: distance & flight time
Athens (Eleftherios Venizelos International Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,209 mi
9,992 km · 5,395 nm
12h 38m
estimated nonstop flight time
-8h
time difference · heading northwest
See live ATH→FSI fares Phone-only fares on this route — call free
Flight time details
6,209 miles nonstop takes roughly 12h 38m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- ATH — Eleftherios Venizelos International Airport · Athens, Greece
- 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 ATH
- HEW · Athen Helenikon Airport12 mi away
- PKH · Porto Cheli Airport62 mi away
- JSY · Syros Airport65 mi away
- SKU · Skiros Airport77 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 ATH from FSI?
The flight distance from Athens (ATH) to Fort Sill (FSI) is 6,209 miles (9,992 km, 5,395 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATH to FSI?
A nonstop flight takes about 12h 38m 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 Athens and Fort Sill?
Fort Sill is 8 hours behind Athens.
What is the cheapest way to fly from ATH to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATH–FSI that never appear on search engines, with no booking fees.