There are
1,893 mi
from Half Moon Bay, CA to Katy, TX
That's the driving distance. It would take 1 day 8 hours to go from Half Moon Bay, California to Katy, Texas.
The flight distance (direct flight from Half Moon Bay, CA to Katy, TX) is 1,613.38 mi.
1,893 mi = 3,045.68 kms