There are
1,870 mi
from Dubuque, IA to Irvine, CA
That's the driving distance. It would take 1 day 8 hours to go from Dubuque, Iowa to Irvine, California.
The flight distance (direct flight from Dubuque, IA to Irvine, CA) is 1,587.35 mi.
1,870 mi = 3,009.02 kms