Distance calculator

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

KDPA · Dupage Airport → KBWI · Baltimore/Washington International Thurgood Marshall Airport

Distance
552.7 nm
1,023.7 km · 636.1 mi
Course (true)
103°
Reverse course
291°
Flight time
1:15

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