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GIU to FSI: distance & flight time
Sigiriya (Sigiriya Air Force Base) → Fort Sill (Henry Post Army Air Field (Fort Sill))
9,492 mi
15,277 km · 8,249 nm
19h 5m
estimated nonstop flight time
-10.5h
time difference · heading north
See live GIU→FSI fares Phone-only fares on this route — call free
Flight time details
9,492 miles nonstop takes roughly 19h 5m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time set-back when reading arrival times on your ticket.
The two airports
- GIU — Sigiriya Air Force Base · Sigiriya, Sri Lanka
- 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 GIU
- HIM · Hingurakgoda Air Force Base18 mi away
- ACJ · Anuradhapura Air Force Base31 mi away
- TRR · China Bay Airport51 mi away
- BTC · Batticaloa Airport67 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 GIU from FSI?
The flight distance from Sigiriya (GIU) to Fort Sill (FSI) is 9,492 miles (15,277 km, 8,249 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GIU to FSI?
A nonstop flight takes about 19h 5m 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 Sigiriya and Fort Sill?
Fort Sill is 10.5 hours behind Sigiriya.
What is the cheapest way to fly from GIU to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GIU–FSI that never appear on search engines, with no booking fees.