Miles between Conroe, TX and Marion, IL

There are
745 mi
from Conroe, TX to Marion, IL

That's the driving distance. It would take 13 hours 28 mins to go from Conroe, Texas to Marion, Illinois.

The flight distance (direct flight from Conroe, TX to Marion, IL) is 633.85 mi.

745 mi = 1,198.30 kms