Miles between St Charles, MO and Katy, TX

There are
818 mi
from St Charles, MO to Katy, TX

That's the driving distance. It would take 15 hours 7 mins to go from St Charles, Missouri to Katy, Texas.

The flight distance (direct flight from St Charles, MO to Katy, TX) is 691.69 mi.

818 mi = 1,316.62 kms