Need help booking?
Unpublished phone-only deals available
FSI to AEX: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Alexandria (Alexandria International Airport)
409 mi
659 km · 356 nm
1h 21m
estimated nonstop flight time
Same time
time difference · heading southeast
See live FSI→AEX fares Phone-only fares on this route — call free
Flight time details
409 miles nonstop takes roughly 1h 21m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- AEX — Alexandria International Airport · Alexandria, 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 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 AEX
- ESF · Esler Regional Airport16 mi away
- POE · Polk Army Air Field43 mi away
- DRI · Beauregard Regional Airport58 mi away
- LFT · Lafayette Regional Airport84 mi away
Frequently asked questions
How far is FSI from AEX?
The flight distance from Fort Sill (FSI) to Alexandria (AEX) is 409 miles (659 km, 356 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to AEX?
A nonstop flight takes about 1h 21m 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 cheapest way to fly from FSI to AEX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–AEX that never appear on search engines, with no booking fees.