There are
1,850 mi
from Dubuque, IA to Azusa, CA
That's the driving distance. It would take 1 day 8 hours to go from Dubuque, Iowa to Azusa, California.
The flight distance (direct flight from Dubuque, IA to Azusa, CA) is 1,577.40 mi.
1,850 mi = 2,976.47 kms