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OST to FSI: distance & flight time
Ostend (Ostend-Bruges International Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
4,835 mi
7,781 km · 4,201 nm
9h 57m
estimated nonstop flight time
-7h
time difference · heading northwest
See live OST→FSI fares Phone-only fares on this route — call free
Flight time details
4,835 miles nonstop takes roughly 9h 57m 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
- OST — Ostend-Bruges International Airport · Ostend, Belgium
- 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 OST
- KJK · Wevelgem Airport30 mi away
- HZB · Merville-Calonne Airport41 mi away
- CQF · Calais-Dunkerque Airport43 mi away
- LIL · Lille-Lesquin Airport45 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 OST from FSI?
The flight distance from Ostend (OST) to Fort Sill (FSI) is 4,835 miles (7,781 km, 4,201 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OST to FSI?
A nonstop flight takes about 9h 57m 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 Ostend and Fort Sill?
Fort Sill is 7 hours behind Ostend.
What is the cheapest way to fly from OST to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OST–FSI that never appear on search engines, with no booking fees.