There are
1,861 mi
from Dubuque, IA to Placentia, CA
That's the driving distance. It would take 1 day 8 hours to go from Dubuque, Iowa to Placentia, California.
The flight distance (direct flight from Dubuque, IA to Placentia, CA) is 1,584.50 mi.
1,861 mi = 2,995.38 kms