There are
2,082 mi
from Vallejo, CA to Downers Grove, IL
That's the driving distance. It would take 1 day 11 hours to go from Vallejo, California to Downers Grove, Illinois.
The flight distance (direct flight from Vallejo, CA to Downers Grove, IL) is 1,819.49 mi.
2,082 mi = 3.22 kms