There are
1,556 mi
from Conroe, TX to Tustin, CA
That's the driving distance. It would take 1 day 2 hours to go from Conroe, Texas to Tustin, California.
The flight distance (direct flight from Conroe, TX to Tustin, CA) is 1,328.90 mi.
1,556 mi = 2,503.62 kms