There are
2,425 mi
from Rialto, CA to Plum, PA
That's the driving distance. It would take 1 day 18 hours to go from Rialto, California to Plum, Pennsylvania.
The flight distance (direct flight from Rialto, CA to Plum, PA) is 2,097.68 mi.
2,425 mi = 3.22 kms