There are
1,842 mi
from Katy, TX to Lathrop, CA
That's the driving distance. It would take 1 day 7 hours to go from Katy, Texas to Lathrop, California.
The flight distance (direct flight from Katy, TX to Lathrop, CA) is 1,557.09 mi.
1,842 mi = 2,965.08 kms