There are
2,234 mi
from Antioch, CA to Portage, MI
That's the driving distance. It would take 1 day 14 hours to go from Antioch, California to Portage, Michigan.
The flight distance (direct flight from Antioch, CA to Portage, MI) is 1,921.62 mi.
2,234 mi = 3,595.10 kms