The distance from Helena to Sidney, Montana

The exact distance between Helena and Sidney, Montana is 378 miles (608 kilometers) by a straight line.

The distance from Helena to Sidney, Montana
The distance from Helena to Sidney, Montana by highways is about 446 miles and it is subject to a slight change depending on the chosen route. Travel time from Helena to Sidney, Montana by car is about 7.4 hours and it also may vary depending on traffic. When planning a trip from Helena to Sidney always remember that travel times may rise by 10 to 50% in case of traffic jams or bad weather. The public transport is also available between Helena and Sidney, Montana.



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Where next? Distances to other cities from Sidney, Montana: