Distance calculator

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

KSSI · St Simons Island Airport → KSTL · St. Louis Lambert International Airport

Distance
634.4 nm
1,174.9 km · 730.0 mi
Course (true)
318°
Reverse course
133°
Flight time
1:27

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