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FSI to UNN: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Ranong (Ranong Airport)
9,172 mi
14,761 km · 7,970 nm
18h 27m
estimated nonstop flight time
+12h
time difference · heading northwest
See live FSI→UNN fares Phone-only fares on this route — call free
Flight time details
9,172 miles nonstop takes roughly 18h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-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
- UNN — Ranong Airport · Ranong, Thailand
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 UNN
- KAW · Kawthoung Airport19 mi away
- URT · Surat Thani Airport58 mi away
- CJM · Chumphon Airport83 mi away
- VBP · Bokpyinn Airport95 mi away
Frequently asked questions
How far is FSI from UNN?
The flight distance from Fort Sill (FSI) to Ranong (UNN) is 9,172 miles (14,761 km, 7,970 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to UNN?
A nonstop flight takes about 18h 27m 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 Ranong?
Ranong is 12 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to UNN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–UNN that never appear on search engines, with no booking fees.