There are
2,678 mi
from Pasadena, CA to Allentown, PA
That's the driving distance. It would take 1 day 23 hours to go from Pasadena, California to Allentown, Pennsylvania.
The flight distance (direct flight from Pasadena, CA to Allentown, PA) is 2,360.49 mi.
2,678 mi = 4,310.55 kms