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SMN to DEC: distance & flight time
Salmon (Lemhi County Airport) → Decatur (Decatur Airport)
1,320 mi
2,124 km · 1,147 nm
3h 20m
estimated nonstop flight time
+1h
time difference · heading east
See live SMN→DEC fares Phone-only fares on this route — call free
Flight time details
1,320 miles nonstop takes roughly 3h 20m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- SMN — Lemhi County Airport · Salmon, United States
- DEC — Decatur Airport · Decatur, 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
Frequently asked questions
How far is SMN from DEC?
The flight distance from Salmon (SMN) to Decatur (DEC) is 1,320 miles (2,124 km, 1,147 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SMN to DEC?
A nonstop flight takes about 3h 20m 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 Salmon and Decatur?
Decatur is 1 hour ahead of Salmon.
What is the cheapest way to fly from SMN to DEC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SMN–DEC that never appear on search engines, with no booking fees.