Go to the mileage calculator at webflyer.com. In the online form, type the departure and arrival locations either as city names or airport codes. The result will display the distance for one-way and round trip.
Search "How Far Is It" at indo.com. Enter the city and country, or city and U.S. state, to find the air mileage between two places. You can also enter the latitude and longitude of the starting point and destination to get the distance between them.
Go to USA Today's MileMarker. In the travel section of usatoday.com, enter either the city or airport code for the departure and arrival locations if all you want is the distance between your starting and ending points. If you'd like to know how flying into a connecting city affects your total mileage, enter that airport as well.
Enter Canadian or U.S. cities in the form at symsys.com. You must type the city followed by a comma, a space and the state or province for the search tool to work.