Miles between St Louis, MO and Boone, IA

There are
391 mi
from St Louis, MO to Boone, IA

That's the driving distance. It would take 7 hours 45 mins to go from St Louis, Missouri to Boone, Iowa.

The flight distance (direct flight from St Louis, MO to Boone, IA) is 306.24 mi.

391 mi = 629.61 kms