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KSO to YSM: distance & flight time
Kastoria (Kastoria National Airport) → Fort Smith (Fort Smith Airport)
5,006 mi
8,057 km · 4,350 nm
10h 17m
estimated nonstop flight time
-9h
time difference · heading north
See live KSO→YSM fares Phone-only fares on this route — call free
Flight time details
5,006 miles nonstop takes roughly 10h 17m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- KSO — Kastoria National Airport · Kastoria, Greece
- YSM — Fort Smith Airport · Fort Smith, 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 KSO
- KZI · Filippos Airport31 mi away
- IOA · Ioannina Airport57 mi away
- OHD · Ohrid St. Paul the Apostle Airport58 mi away
- LRA · Larisa Airport83 mi away
Near YSM
- YPY · Fort Chipewyan Airport92 mi away
- YFR · Fort Resolution Airport99 mi away
- YBE · Uranium City Airport125 mi away
- YHY · Hay River / Merlyn Carter Airport142 mi away
Frequently asked questions
How far is KSO from YSM?
The flight distance from Kastoria (KSO) to Fort Smith (YSM) is 5,006 miles (8,057 km, 4,350 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSO to YSM?
A nonstop flight takes about 10h 17m 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 Kastoria and Fort Smith?
Fort Smith is 9 hours behind Kastoria.
What is the cheapest way to fly from KSO to YSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSO–YSM that never appear on search engines, with no booking fees.