The distance from Nova Scotia to Boston is approximately 645 kilometers (about 401 miles) when measured as the shortest air travel distance. By road, the distance varies depending on the route, but for example, driving from Boston to various points in Nova Scotia can range from about 535 miles to 670 miles, with estimated driving times around 9 to 13 hours depending on the exact destination and route taken. Flying between the two places typically takes around 1 hour and 15 to 30 minutes. Thus, for quick reference, the straight- line distance is about 645 km (401 miles), but longer distances are involved for driving routes due to geography and roadways.

This means that Nova Scotia is fairly close to Boston in North American terms, just a short flight away, or a day-long drive if traveling by car.