Calculating Your Route
Just a moment while we calculate your route...
Distance from Herrick to East Portal
Route Information
The driving distance from Herrick, Idaho to East Portal, Montana is 109.1 mi (175.6 km)
The straight-line (air) distance is 23.7 mi (38.2 km)
The estimated flight time is 0 hr 3 min
The estimated travel time by road is 2 hours 19 minutes
Traveling mixed highways and local roads, substantial in a east direction. Average speeds around 44 mph.
Location Details
Origin:
No image available
Destination:
No image available
Journey Summary
Traveling from Herrick, Idaho to East Portal, Montana covers 109.1 mi (175.6 km) in a east direction. This mixed highways and local roads, substantial route typically takes 2 hours 19 minutes under normal conditions.
The route features scenic views, toll sections. with average speeds around 44 mph (71 km/h).
How is the distance calculated?
Driving distances are based on actual road data. We use advanced routing algorithms that consider traffic, tolls, highways, and local streets. For air distances (as the crow flies), we use the Vincenty formula. It's a precise method that accounts for the Earth's shape and provides accuracy up to 0.5 mm.
When multiple route options exist, we display both the shortest and fastest paths. Travel times are estimated based on typical speeds for each road type, though actual times may vary with traffic and weather conditions. All distances are shown in both miles and kilometers for convenience.