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SDF to YSM: distance & flight time
Louisville (Louisville International Standiford Field) → Fort Smith (Fort Smith Airport)
1,894 mi
3,048 km · 1,646 nm
4h 11m
estimated nonstop flight time
-2h
time difference · heading northwest
See live SDF→YSM fares Phone-only fares on this route — call free
Flight time details
1,894 miles nonstop takes roughly 4h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- SDF — Louisville International Standiford Field · Louisville, United States
- 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 SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 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 SDF from YSM?
The flight distance from Louisville (SDF) to Fort Smith (YSM) is 1,894 miles (3,048 km, 1,646 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDF to YSM?
A nonstop flight takes about 4h 11m 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 Louisville and Fort Smith?
Fort Smith is 2 hours behind Louisville.
What is the cheapest way to fly from SDF to YSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDF–YSM that never appear on search engines, with no booking fees.