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FLZ to FSI: distance & flight time
Sibolga (Dr Ferdinand Lumban Tobing Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
9,696 mi
15,604 km · 8,426 nm
19h 29m
estimated nonstop flight time
-12h
time difference · heading northeast
See live FLZ→FSI fares Phone-only fares on this route — call free
Flight time details
9,696 miles nonstop takes roughly 19h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- FLZ — Dr Ferdinand Lumban Tobing Airport · Sibolga, Indonesia
- 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 FLZ
- AEG · Aek Godang Airport39 mi away
- DTB · Silangit Airport49 mi away
- GNS · Binaka Airport86 mi away
- PPR · Pasir Pangaraan Airport113 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 FLZ from FSI?
The flight distance from Sibolga (FLZ) to Fort Sill (FSI) is 9,696 miles (15,604 km, 8,426 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLZ to FSI?
A nonstop flight takes about 19h 29m 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 Sibolga and Fort Sill?
Fort Sill is 12 hours behind Sibolga.
What is the cheapest way to fly from FLZ to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLZ–FSI that never appear on search engines, with no booking fees.