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BOI to SMN: distance & flight time
Boise (Boise Air Terminal/Gowen Field) → Salmon (Lemhi County Airport)
158 mi
254 km · 137 nm
53m
estimated nonstop flight time
Same time
time difference · heading northeast
See live BOI→SMN fares Phone-only fares on this route — call free
Flight time details
158 miles nonstop takes roughly 53m gate to gate, flying northeast. 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
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
- SMN — Lemhi County Airport · Salmon, 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 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
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
Frequently asked questions
How far is BOI from SMN?
The flight distance from Boise (BOI) to Salmon (SMN) is 158 miles (254 km, 137 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOI to SMN?
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.
Are there nonstop flights from BOI to SMN?
Nonstop service on BOI–SMN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 53m nonstop estimate.
What is the cheapest way to fly from BOI to SMN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOI–SMN that never appear on search engines, with no booking fees.
Why are some BOI to SMN fares phone-only?
Consolidator contracts let us sell certain BOI–SMN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.