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JSY to FSI: distance & flight time
Syros Island (Syros Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,273 mi
10,095 km · 5,451 nm
12h 46m
estimated nonstop flight time
-8h
time difference · heading northwest
See live JSY→FSI fares Phone-only fares on this route — call free
Flight time details
6,273 miles nonstop takes roughly 12h 46m 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
- JSY — Syros Airport · Syros Island, 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 JSY
- JMK · Mikonos Airport22 mi away
- PAS · Paros National Airport29 mi away
- JNX · Naxos Airport33 mi away
- MLO · Milos Airport57 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 JSY from FSI?
The flight distance from Syros Island (JSY) to Fort Sill (FSI) is 6,273 miles (10,095 km, 5,451 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from JSY to FSI?
A nonstop flight takes about 12h 46m 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 Syros Island and Fort Sill?
Fort Sill is 8 hours behind Syros Island.
What is the cheapest way to fly from JSY to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on JSY–FSI that never appear on search engines, with no booking fees.