TravelMath.com and DistanceFromTo.net provide calculators to determine the distance between two cities, as of 2015. The calculators on both websites display the flying and driving distance between two cities in miles and kilometers.
To determine the distance between two cities on TravelMath.com, enter a city and state in the From and in the To field, and then click Go. Driving and flying distances are displayed along with time of travel and a link to view a map.
Determine the distance between two cities on DistanceFromTo.net by entering a city and state in the To and From fields, selecting air distance or driving and then clicking Measure. Distance is displayed in miles, kilometers and nautical miles.