There are
2,405 mi
from Rialto, CA to Greensburg, PA
That's the driving distance. It would take 1 day 19 hours to go from Rialto, California to Greensburg, Pennsylvania.
The flight distance (direct flight from Rialto, CA to Greensburg, PA) is 2,108.83 mi.
2,405 mi = 3.22 kms