There are
2,710 mi
from Allentown, PA to Pasadena, CA
That's the driving distance. It would take 2 days to go from Allentown, Pennsylvania to Pasadena, California.
The flight distance (direct flight from Allentown, PA to Pasadena, CA) is 2,360.49 mi.
2,710 mi = 3.22 kms