There are
2,457 mi
from San Marcos, CA to Wilkinsburg, PA
That's the driving distance. It would take 1 day 19 hours to go from San Marcos, California to Wilkinsburg, Pennsylvania.
The flight distance (direct flight from San Marcos, CA to Wilkinsburg, PA) is 2,107.01 mi.
2,457 mi = 3.22 kms