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FSI to YSC: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → Sherbrooke (Sherbrooke Airport)
1,587 mi
2,554 km · 1,379 nm
3h 35m
estimated nonstop flight time
+1h
time difference · heading northeast
See live FSI→YSC fares Phone-only fares on this route — call free
Flight time details
1,587 miles nonstop takes roughly 3h 35m 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
- YSC — Sherbrooke Airport · Sherbrooke, 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 YSC
- ZBM · Bromont (Roland Desourdy) Airport52 mi away
- MVL · Morrisville Stowe State Airport77 mi away
- YJN · St Jean Airport78 mi away
- YRQ · Trois-Rivières Airport79 mi away
Frequently asked questions
How far is FSI from YSC?
The flight distance from Fort Sill (FSI) to Sherbrooke (YSC) is 1,587 miles (2,554 km, 1,379 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to YSC?
A nonstop flight takes about 3h 35m 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 Sherbrooke?
Sherbrooke is 1 hour ahead of Fort Sill.
What is the cheapest way to fly from FSI to YSC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–YSC that never appear on search engines, with no booking fees.