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Distance from Pray to Big Sky

Driving Distance
90.9 mi 146.3 km
Flying Distance
31.2 mi 50.2 km

Route Information

The driving distance from Pray, Montana to Big Sky, Montana is 90.9 mi (146.3 km)

The straight-line (air) distance is 31.2 mi (50.2 km)

The estimated flight time is 0 hr 4 min

The estimated travel time by road is 1 hour 46 minutes

Traveling mixed highways and local roads, substantial in a west direction. Average speeds around 47 mph.

Location Details

Origin:

Pray
Place Pray
State/Province Montana
Country US
Latitude 45.40229
Longitude -110.698762
GPS 45.40229° N, 110.698762° W
Local Time 6:11 PM
Timezone America/Denver

Destination:

Big Sky
Place Big Sky
State/Province Montana
Country US
Latitude 45.261781
Longitude -111.308024
GPS 45.261781° N, 111.308024° W
Local Time 6:11 PM
Timezone America/Denver

Journey Summary

Traveling from Pray, Montana to Big Sky, Montana covers 90.9 mi (146.3 km) in a west direction. This mixed highways and local roads, substantial route typically takes 1 hour 46 minutes under normal conditions.

Drivers have 2 route options between these locations (87.4-90.9 miles / 141-146 km). The primary route shown here saves 2 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 47 mph (76 km/h).

Available Routes

I-90 W and US-191 S
90.9 mi 1 hour 46 minutes
Shortest
US-191 S/Gallatin Rd
87.4 mi 1 hour 45 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.