There are
1,495 mi
from Katy, TX to Placentia, CA
That's the driving distance. It would take 1 day 1 hour to go from Katy, Texas to Placentia, California.
The flight distance (direct flight from Katy, TX to Placentia, CA) is 1,321.82 mi.
1,495 mi = 2,405.83 kms