Airports / Idaho / SMN
Lemhi County Airport
KSMN / SMNSalmon, IdahoELEV 4,043 FT
Google rating
Google reviews
Field elevation
Nearest alternate
Field standing
#2 / 18
Idaho airports by Google rating
4.9★ across 10 Google ratings — ranked against 18 rated ID fields.
77 nm
To the nearest alternate
Bert Mooney Airport (BTM).
Overview
Lemhi County Airport, listed as KSMN / SMN, is a mid-sized airport in Salmon, Idaho. Field elevation is 4,043 feet above sea level. Scheduled carriers operate here, and the field also sees regular private and charter activity.
While no charter operators list SMN as their home base, the field is reachable for repositioned charter aircraft from nearby bases. The closest alternate fields are Bert Mooney Airport (BTM, 77 nm), McCall Municipal Airport (MYL, 95 nm), and Friedman Memorial Airport (SUN, 99 nm).
Trip costs from SMN are driven by the aircraft category flown and how far it must reposition. Browse operators flying from the area or estimate a trip cost from SMN to plan your flight.
Field capability
ICAO
KSMN
IATA
SMN
FAA / Local
SMN
Elevation
4,043 ft
Coordinates
45.1222° N · 113.8820° W
Airspace
G · GolfClass G — GolfUncontrolled field — no tower. Pilots self-announce and sequence themselves on the common traffic advisory frequency.Source: FAA NASR class airspace
Size
Medium
Scheduled svc
Yes
Elevation vs ID fields
state range 1,442–5,318 ft
At 4,043 ft, SMN sits lower than 61% of the 18 Idaho fields on the register.
Access & alternates
Closest alternate fields by great-circle distance — every listing links to its own field brief.
- 77nmBTMBert Mooney AirportButte
- 95nmMYLMcCall Municipal AirportMcCall
- 99nmSUNFriedman Memorial AirportHailey
- 108nmMSOMissoula Montana AirportMissoula
- 119nmHLNHelena Regional AirportHelena
- 120nmWYSYellowstone AirportWest Yellowstone
Location
Open the full mapKSMN · Lemhi County Airport · Salmon, ID
From the ramp
Google Places photography of Lemhi County Airport — tap any frame to view full-screen, then cycle with the arrows or your keyboard.