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SPF to YSM: distance & flight time
Spearfish-South Dakota (Black Hills Airport-Clyde Ice Field) → Fort Smith (Fort Smith Airport)
1,126 mi
1,812 km · 979 nm
2h 55m
estimated nonstop flight time
Same time
time difference · heading north
See live SPF→YSM fares Phone-only fares on this route — call free
Flight time details
1,126 miles nonstop takes roughly 2h 55m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SPF — Black Hills Airport-Clyde Ice Field · Spearfish-South Dakota, 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 SPF
- RCA · Ellsworth Air Force Base41 mi away
- RAP · Rapid City Regional Airport47 mi away
- GCC · Gillette Campbell County Airport87 mi away
- CDR · Chadron Municipal Airport119 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 SPF from YSM?
The flight distance from Spearfish-South Dakota (SPF) to Fort Smith (YSM) is 1,126 miles (1,812 km, 979 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPF to YSM?
A nonstop flight takes about 2h 55m 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 cheapest way to fly from SPF to YSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPF–YSM that never appear on search engines, with no booking fees.