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Distance from Allens Spring , Illinois to Alto Pass , Illinois
Route Information
The driving distance from Allens Spring, Illinois to Alto Pass, Illinois is 48 mi (77.3 km)
The straight-line (air) distance is 38.9 mi (62.6 km)
The estimated flight time is 0 hr 5 min (assuming average flight speed of 500 mph)
The estimated travel time by road is 1 hour 1 minute
Traveling mixed highways and local roads, moderate in a west direction. Average speeds around 51 mph.
Location Details
Origin:
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Destination:
Journey Summary
Traveling from Allens Spring, Illinois to Alto Pass, Illinois covers 48 mi (77.3 km) in a west direction. This mixed highways and local roads, moderate route typically takes 1 hour 1 minute under normal conditions.
Drivers have 3 route options between these locations (44.5-56.7 miles / 72-91 km). The primary route shown here saves 13 minutes compared to alternatives.
The route features scenic views along the way. with average speeds around 51 mph (82 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.