There are
2,464 mi
from Fullerton, CA to Monroeville, PA
That's the driving distance. It would take 1 day 19 hours to go from Fullerton, California to Monroeville, Pennsylvania.
The flight distance (direct flight from Fullerton, CA to Monroeville, PA) is 2,131.32 mi.
2,464 mi = 3.22 kms