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