There are
2,007 mi
from Duluth, MN to Hercules, CA
That's the driving distance. It would take 1 day 11 hours to go from Duluth, Minnesota to Hercules, California.
The flight distance (direct flight from Duluth, MN to Hercules, CA) is 1,642.57 mi.
2,007 mi = 3.22 kms