Distance calculator

Great-circle distance. Enter an airport ICAO / IATA code or coordinates (for example 52.1657, 20.9671).

KORD · Chicago O'Hare International Airport → KNUI · Naval Outlying Landing Field Webster

Distance
574.9 nm
1,064.7 km · 661.6 mi
Course (true)
110°
Reverse course
297°
Flight time
1:18

Straight great-circle distance, not a route. Course is true, not magnetic.