Miles between St Louis, MO and Zachary, LA

There are
642 mi
from St Louis, MO to Zachary, LA

That's the driving distance. It would take 12 hours 2 mins to go from St Louis, Missouri to Zachary, Louisiana.

The flight distance (direct flight from St Louis, MO to Zachary, LA) is 553.93 mi.

642 mi = 1,032.99 kms