There are
2,052 mi
from Thousand Oaks, CA to Prospect Heights, IL
That's the driving distance. It would take 1 day 12 hours to go from Thousand Oaks, California to Prospect Heights, Illinois.
The flight distance (direct flight from Thousand Oaks, CA to Prospect Heights, IL) is 1,755.21 mi.
2,052 mi = 3.22 kms