Miles between Ontario, CA and Sun Prairie, WI

There are
1,945 mi
from Ontario, CA to Sun Prairie, WI

That's the driving distance. It would take 1 day 10 hours to go from Ontario, California to Sun Prairie, Wisconsin.

The flight distance (direct flight from Ontario, CA to Sun Prairie, WI) is 1,649.20 mi.

1,945 mi = 1.61 kms