Need help booking?
Unpublished phone-only deals available
FSI to TDX: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Trat (Trat Airport)
8,921 mi
14,358 km · 7,753 nm
17h 58m
estimated nonstop flight time
+12h
time difference · heading northwest
See live FSI→TDX fares Phone-only fares on this route — call free
Flight time details
8,921 miles nonstop takes roughly 17h 58m 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
- TDX — Trat Airport · Trat, 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 TDX
- BBM · Battambang Airport83 mi away
- UTP · U-Tapao International Airport93 mi away
- REP · Siem Reap International Airport128 mi away
- BKK · Suvarnabhumi Airport144 mi away
Frequently asked questions
How far is FSI from TDX?
The flight distance from Fort Sill (FSI) to Trat (TDX) is 8,921 miles (14,358 km, 7,753 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to TDX?
A nonstop flight takes about 17h 58m 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 Trat?
Trat is 12 hours ahead of Fort Sill.
What is the cheapest way to fly from FSI to TDX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–TDX that never appear on search engines, with no booking fees.