Distance: Idaho Falls to Helena
Distance between Idaho Falls and Helena in kilometers, miles and nautical miles.
347 km
Straight-line
great-circle
187 nm
Nautical Miles
as the crow flies
468 km
By Road
5h 51m
56 minutes
By Air
flight time
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Frequently Asked Questions
How far is Idaho Falls from Helena?
The straight-line distance from Idaho Falls to Helena is 347 km (187 nautical miles). By road it is approximately 468 km (5h 51m drive). By air the flight takes about 56 minutes.
How many nautical miles is it from Idaho Falls to Helena?
The nautical distance from Idaho Falls to Helena is approximately 187 nautical miles.