There are
2,138 mi
from Walnut Creek, CA to Portage, IN
That's the driving distance. It would take 1 day 12 hours to go from Walnut Creek, California to Portage, Indiana.
The flight distance (direct flight from Walnut Creek, CA to Portage, IN) is 1,858.06 mi.
2,138 mi = 3,441.49 kms