Distance calculator

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

KMPR · Mc Pherson Airport → KSTL · St. Louis Lambert International Airport

Distance
344.5 nm
638.0 km · 396.4 mi
Course (true)
084°
Reverse course
268°
Flight time
0:47

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