There are
1,957 mi
from Dubuque, IA to Manteca, CA
That's the driving distance. It would take 1 day 9 hours to go from Dubuque, Iowa to Manteca, California.
The flight distance (direct flight from Dubuque, IA to Manteca, CA) is 1,636.60 mi.
1,957 mi = 3,149.54 kms