There are
1,709 mi
from Killeen, TX to Antioch, CA
That's the driving distance. It would take 1 day 6 hours to go from Killeen, Texas to Antioch, California.
The flight distance (direct flight from Killeen, TX to Antioch, CA) is 1,445.35 mi.
1,709 mi = 2,749.73 kms