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ADP to FSI: distance & flight time
Galoya (Ampara Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
9,536 mi
15,346 km · 8,286 nm
19h 10m
estimated nonstop flight time
-10.5h
time difference · heading north
See live ADP→FSI fares Phone-only fares on this route — call free
Flight time details
9,536 miles nonstop takes roughly 19h 10m 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
- ADP — Ampara Airport · Galoya, 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 ADP
- BTC · Batticaloa Airport26 mi away
- HIM · Hingurakgoda Air Force Base66 mi away
- GIU · Sigiriya Air Force Base75 mi away
- WRZ · Weerawila Airport80 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 ADP from FSI?
The flight distance from Galoya (ADP) to Fort Sill (FSI) is 9,536 miles (15,346 km, 8,286 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ADP to FSI?
A nonstop flight takes about 19h 10m 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 Galoya and Fort Sill?
Fort Sill is 10.5 hours behind Galoya.
What is the cheapest way to fly from ADP to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ADP–FSI that never appear on search engines, with no booking fees.