Distance calculator

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

KAVK · Alva Regional Airport → KSTL · St. Louis Lambert International Airport

Distance
411.3 nm
761.6 km · 473.3 mi
Course (true)
071°
Reverse course
256°
Flight time
0:56

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