There are
2,086 mi
from Porterville, CA to Prospect Heights, IL
That's the driving distance. It would take 1 day 12 hours to go from Porterville, California to Prospect Heights, Illinois.
The flight distance (direct flight from Porterville, CA to Prospect Heights, IL) is 1,707.97 mi.
2,086 mi = 3,357.53 kms