Miles between Olathe, KS and Mt Vernon, IL

There are
345 mi
from Olathe, KS to Mt Vernon, IL

That's the driving distance. It would take 6 hours 40 mins to go from Olathe, Kansas to Mt Vernon, Illinois.

The flight distance (direct flight from Olathe, KS to Mt Vernon, IL) is 321.76 mi.

345 mi = 555.79 kms