There are
2,020 mi
from Davis, CA to Machesney Park, IL
That's the driving distance. It would take 1 day 10 hours to go from Davis, California to Machesney Park, Illinois.
The flight distance (direct flight from Davis, CA to Machesney Park, IL) is 1,728.59 mi.
2,020 mi = 3,250.61 kms