There are
1,991 mi
from Temecula, CA to Warrenville, IL
That's the driving distance. It would take 1 day 10 hours to go from Temecula, California to Warrenville, Illinois.
The flight distance (direct flight from Temecula, CA to Warrenville, IL) is 1,676.38 mi.
1,991 mi = 1.61 kms