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FSI to YCM: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Saint Catherines (Niagara District Airport)
1,186 mi
1,909 km · 1,031 nm
3h 3m
estimated nonstop flight time
+1h
time difference · heading northeast
See live FSI→YCM fares Phone-only fares on this route — call free
Flight time details
1,186 miles nonstop takes roughly 3h 3m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-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
- YCM — Niagara District Airport · Saint Catherines, Canada
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 YCM
- YYZ · Lester B. Pearson International Airport41 mi away
- IAG · Niagara Falls International Airport13 mi away
- BUF · Buffalo Niagara International Airport28 mi away
- DU9 · Dunnville Airport31 mi away
Frequently asked questions
How far is FSI from YCM?
The flight distance from Fort Sill (FSI) to Saint Catherines (YCM) is 1,186 miles (1,909 km, 1,031 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to YCM?
A nonstop flight takes about 3h 3m 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 Saint Catherines?
Saint Catherines is 1 hour ahead of Fort Sill.
What is the cheapest way to fly from FSI to YCM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–YCM that never appear on search engines, with no booking fees.