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Distance from McNamara to Swan Falls

Driving Distance
432.9 mi 696.7 km
Flying Distance
285.7 mi 459.7 km

Route Information

The driving distance from McNamara, Montana to Swan Falls, Idaho is 432.9 mi (696.7 km)

The straight-line (air) distance is 285.7 mi (459.7 km)

The estimated flight time is 0 hr 34 min

The estimated travel time by road is 8 hours 14 minutes

Traveling mixed highways and local roads, long-distance in a southwest direction. Average speeds around 50 mph.

Location Details

Origin:

McNamara
Place McNamara
State/Province Montana
Country US
Latitude 46.911318
Longitude -113.677594
GPS 46.911318° N, 113.677594° W
Local Time 3:01 AM
Timezone America/Denver

Destination:

Swan Falls
Place Swan Falls
State/Province Idaho
Country US
Latitude 43.241554
Longitude -116.374279
GPS 43.241554° N, 116.374279° W
Local Time 3:01 AM
Timezone America/Boise

Journey Summary

Traveling from McNamara, Montana to Swan Falls, Idaho covers 432.9 mi (696.7 km) in a southwest direction. This mixed highways and local roads, long-distance route typically takes 8 hours 14 minutes under normal conditions.

Drivers have 3 route options between these locations (428.3-554.7 miles / 689-893 km). The primary route shown here saves 19 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 50 mph (80 km/h).

Available Routes

US-12 W, US-95 S and I-84 E
432.9 mi 8 hours 14 minutes
Shortest
I-15 S
554.7 mi 8 hours 30 minutes
US-12 W and US-95 S
428.3 mi 8 hours 11 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.