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FSI to OST: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Ostend (Ostend-Bruges International Airport)
4,835 mi
7,781 km · 4,201 nm
9h 57m
estimated nonstop flight time
+7h
time difference · heading northeast
See live FSI→OST fares Phone-only fares on this route — call free
Flight time details
4,835 miles nonstop takes roughly 9h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- OST — Ostend-Bruges International Airport · Ostend, Belgium
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 OST
- KJK · Wevelgem Airport30 mi away
- HZB · Merville-Calonne Airport41 mi away
- CQF · Calais-Dunkerque Airport43 mi away
- LIL · Lille-Lesquin Airport45 mi away
Frequently asked questions
How far is FSI from OST?
The flight distance from Fort Sill (FSI) to Ostend (OST) 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 FSI to OST?
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 Fort Sill and Ostend?
Ostend is 7 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to OST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–OST that never appear on search engines, with no booking fees.