Distance and flight time

The distance is the great-circle between the two stored coordinates, using a mean Earth radius of 6371 km. It is not a route. Flight time is that distance divided by the ground speed you type, in knots. Leave the speed blank to skip the time.

Subset of OurAirports large airports. OurAirports data by David Megginson is in the public domain. https://ourairports.com/data/ Positions can be wrong. Do not navigate with them.