There are
1,959 mi
from Dubuque, IA to Oakley, CA
That's the driving distance. It would take 1 day 9 hours to go from Dubuque, Iowa to Oakley, California.
The flight distance (direct flight from Dubuque, IA to Oakley, CA) is 1,656.93 mi.
1,959 mi = 3,152.94 kms