Need help booking?
Unpublished phone-only deals available
IOA to FSI: distance & flight time
Ioannina (Ioannina Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
6,004 mi
9,663 km · 5,217 nm
12h 14m
estimated nonstop flight time
-8h
time difference · heading northwest
See live IOA→FSI fares Phone-only fares on this route — call free
Flight time details
6,004 miles nonstop takes roughly 12h 14m 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
- IOA — Ioannina Airport · Ioannina, 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 IOA
- CFU · Ioannis Kapodistrias International Airport49 mi away
- PVK · Aktion National Airport53 mi away
- KSO · Kastoria National Airport57 mi away
- KZI · Filippos Airport68 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 IOA from FSI?
The flight distance from Ioannina (IOA) to Fort Sill (FSI) is 6,004 miles (9,663 km, 5,217 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IOA to FSI?
A nonstop flight takes about 12h 14m 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 Ioannina and Fort Sill?
Fort Sill is 8 hours behind Ioannina.
What is the cheapest way to fly from IOA to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IOA–FSI that never appear on search engines, with no booking fees.