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Distance from St Ignatius to Plains
Route Information
The driving distance from St Ignatius, Montana to Plains, Montana is 46.1 mi (74.2 km)
The straight-line (air) distance is 38.2 mi (61.6 km)
The estimated flight time is 0 hr 5 min
The estimated travel time by road is 49 minutes
Traveling highway, moderate in a west direction. Average speeds around 59 mph.
Location Details
Origin:
Destination:
Journey Summary
Traveling from St Ignatius, Montana to Plains, Montana covers 46.1 mi (74.2 km) in a west direction. This highway, moderate route typically takes 49 minutes under normal conditions.
Drivers have 2 route options between these locations (45.3-46.1 miles / 73-74 km). The primary route shown here saves 24 seconds compared to alternatives.
The route features scenic views along the way. with average speeds around 59 mph (95 km/h).
Available Routes
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.