There are
2,434 mi
from Pittsburgh, PA to Rancho Santa Margarita, CA
That's the driving distance. It would take 1 day 19 hours to go from Pittsburgh, Pennsylvania to Rancho Santa Margarita, California.
The flight distance (direct flight from Pittsburgh, PA to Rancho Santa Margarita, CA) is 2,109.84 mi.
2,434 mi = 3.22 kms