There are
1,666 mi
from Cupertino, CA to Boerne, TX
That's the driving distance. It would take 1 day 4 hours to go from Cupertino, California to Boerne, Texas.
The flight distance (direct flight from Cupertino, CA to Boerne, TX) is 1,434.09 mi.
1,666 mi = 2,681.34 kms