There are
1,531 mi
from Covina, CA to Tomball, TX
That's the driving distance. It would take 1 day 2 hours to go from Covina, California to Tomball, Texas.
The flight distance (direct flight from Covina, CA to Tomball, TX) is 1,329.80 mi.
1,531 mi = 2,463.55 kms