There are
2,832 mi
from Alameda, CA to Allentown, PA
That's the driving distance. It would take 2 days 1 hour to go from Alameda, California to Allentown, Pennsylvania.
The flight distance (direct flight from Alameda, CA to Allentown, PA) is 2,481.96 mi.
2,832 mi = 3.22 kms