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FSI to OUL: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Oulu (Oulu Airport)
4,923 mi
7,924 km · 4,278 nm
10h 7m
estimated nonstop flight time
+8h
time difference · heading north
See live FSI→OUL fares Phone-only fares on this route — call free
Flight time details
4,923 miles nonstop takes roughly 10h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-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
- OUL — Oulu Airport · Oulu, Finland
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 OUL
- KEM · Kemi-Tornio Airport63 mi away
- YLI · Ylivieska Airfield63 mi away
- KAJ · Kajaani Airport82 mi away
- LLA · Luleå Airport103 mi away
Frequently asked questions
How far is FSI from OUL?
The flight distance from Fort Sill (FSI) to Oulu (OUL) is 4,923 miles (7,924 km, 4,278 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to OUL?
A nonstop flight takes about 10h 7m 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 Oulu?
Oulu is 8 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to OUL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–OUL that never appear on search engines, with no booking fees.