There are
2,127 mi
from Antioch, CA to Portage, IN
That's the driving distance. It would take 1 day 12 hours to go from Antioch, California to Portage, Indiana.
The flight distance (direct flight from Antioch, CA to Portage, IN) is 1,842.51 mi.
2,127 mi = 3,423.03 kms