There are
1,957 mi
from Thousand Oaks, CA to Chatham, IL
That's the driving distance. It would take 1 day 10 hours to go from Thousand Oaks, California to Chatham, Illinois.
The flight distance (direct flight from Thousand Oaks, CA to Chatham, IL) is 1,645.75 mi.
1,957 mi = 1.61 kms