There are
2,036 mi
from Hayward, CA to Duluth, MN
That's the driving distance. It would take 1 day 12 hours to go from Hayward, California to Duluth, Minnesota.
The flight distance (direct flight from Hayward, CA to Duluth, MN) is 1,645.56 mi.
2,036 mi = 3.22 kms