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Distance from Cascade to Smoky Mountains

Driving Distance
258.8 mi 416.6 km
Flying Distance
90.4 mi 145.4 km

Route Information

The driving distance from Cascade, Idaho to Smoky Mountains, Idaho is 258.8 mi (416.6 km)

The straight-line (air) distance is 90.4 mi (145.4 km)

The estimated flight time is 0 hr 11 min

The estimated travel time by road is 5 hours 8 minutes

Traveling mixed highways and local roads, long-distance in a southeast direction. Average speeds around 42 mph.

Location Details

Origin:

Cascade
Place Cascade
State/Province Idaho
Country US
Latitude 44.516282
Longitude -116.041798
GPS 44.516282° N, 116.041798° W
Local Time 4:04 PM
Timezone America/Boise

Destination:

Smoky Mountains
Place Smoky Mountains
State/Province Idaho
Country US
Latitude 43.662959
Longitude -114.664506
GPS 43.662959° N, 114.664506° W
Local Time 4:04 PM
Timezone America/Boise

Journey Summary

Traveling from Cascade, Idaho to Smoky Mountains, Idaho covers 258.8 mi (416.6 km) in a southeast direction. This mixed highways and local roads, long-distance route typically takes 5 hours 8 minutes under normal conditions.

Drivers have 2 route options between these locations (182.9-258.8 miles / 294-417 km). The primary route shown here saves 1 hour and 7 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 42 mph (68 km/h).

Available Routes

ID-55 S and US-20 E
258.8 mi 5 hours 8 minutes
Shortest
ID-21 N and ID-75 S
182.9 mi 4 hours 2 minutes
Fastest

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.