Distance calculator

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

KBQR · Buffalo Lancaster Regional Airport → KORD · Chicago O'Hare International Airport

Distance
415.3 nm
769.2 km · 478.0 mi
Course (true)
265°
Reverse course
079°
Flight time
0:57

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