There are
2,061 mi
from Pittsburg, CA to Collinsville, IL
That's the driving distance. It would take 1 day 11 hours to go from Pittsburg, California to Collinsville, Illinois.
The flight distance (direct flight from Pittsburg, CA to Collinsville, IL) is 1,720.36 mi.
2,061 mi = 3,317.11 kms