There are
1,555 mi
from Conroe, TX to Fullerton, CA
That's the driving distance. It would take 1 day 2 hours to go from Conroe, Texas to Fullerton, California.
The flight distance (direct flight from Conroe, TX to Fullerton, CA) is 1,335.21 mi.
1,555 mi = 2,502.91 kms