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SMN to BOI: distance & flight time
Salmon (Lemhi County Airport) → Boise (Boise Air Terminal/Gowen Field)
158 mi
254 km · 137 nm
53m
estimated nonstop flight time
Same time
time difference · heading southwest
See live SMN→BOI fares Phone-only fares on this route — call free
Flight time details
158 miles nonstop takes roughly 53m gate to gate, flying southwest. 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
- SMN — Lemhi County Airport · Salmon, United States
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
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 SMN
- BTM · Bert Mooney Airport88 mi away
- MYL · McCall Municipal Airport110 mi away
- SUN · Friedman Memorial Airport114 mi away
- MSO · Missoula International Airport124 mi away
Near BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Frequently asked questions
How far is SMN from BOI?
The flight distance from Salmon (SMN) to Boise (BOI) is 158 miles (254 km, 137 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SMN to BOI?
A nonstop flight takes about 53m 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 SMN to BOI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SMN–BOI that never appear on search engines, with no booking fees.