There are
1,983 mi
from Dubuque, IA to Larkspur, CA
That's the driving distance. It would take 1 day 10 hours to go from Dubuque, Iowa to Larkspur, California.
The flight distance (direct flight from Dubuque, IA to Larkspur, CA) is 1,700.40 mi.
1,983 mi = 3,192.08 kms