There are
2,822 mi
from Allentown, PA to Pittsburg, CA
That's the driving distance. It would take 2 days 1 hour to go from Allentown, Pennsylvania to Pittsburg, California.
The flight distance (direct flight from Allentown, PA to Pittsburg, CA) is 2,457.59 mi.
2,822 mi = 3.22 kms