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FSI to COS: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Colorado Springs (City of Colorado Springs Municipal Airport)
452 mi
727 km · 392 nm
1h 27m
estimated nonstop flight time
-1h
time difference · heading northwest
See live FSI→COS fares Phone-only fares on this route — call free
Flight time details
452 miles nonstop takes roughly 1h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
- COS — City of Colorado Springs Municipal Airport · Colorado Springs, 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 COS
- FCS · Butts AAF (Fort Carson) Air Field9 mi away
- DEN · Denver International Airport73 mi away
- PUB · Pueblo Memorial Airport37 mi away
- APA · Centennial Airport53 mi away
Frequently asked questions
How far is FSI from COS?
The flight distance from Fort Sill (FSI) to Colorado Springs (COS) is 452 miles (727 km, 392 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to COS?
A nonstop flight takes about 1h 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 Colorado Springs?
Colorado Springs is 1 hour behind Fort Sill.
What is the cheapest way to fly from FSI to COS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–COS that never appear on search engines, with no booking fees.