There are
1,915 mi
from Temecula, CA to Chatham, IL
That's the driving distance. It would take 1 day 9 hours to go from Temecula, California to Chatham, Illinois.
The flight distance (direct flight from Temecula, CA to Chatham, IL) is 1,574.42 mi.
1,915 mi = 1.61 kms