There are
1,997 mi
from Hayward, CA to Dubuque, IA
That's the driving distance. It would take 1 day 10 hours to go from Hayward, California to Dubuque, Iowa.
The flight distance (direct flight from Hayward, CA to Dubuque, IA) is 1,683.87 mi.
1,997 mi = 1.61 kms