Miles between Ontario, CA and Dubuque, IA

There are
1,837 mi
from Ontario, CA to Dubuque, IA

That's the driving distance. It would take 1 day 8 hours to go from Ontario, California to Dubuque, Iowa.

The flight distance (direct flight from Ontario, CA to Dubuque, IA) is 1,567.03 mi.

1,837 mi = 1.61 kms