There are
2,665 mi
from Allentown, PA to Azusa, CA
That's the driving distance. It would take 1 day 23 hours to go from Allentown, Pennsylvania to Azusa, California.
The flight distance (direct flight from Allentown, PA to Azusa, CA) is 2,348.47 mi.
2,665 mi = 4,288.54 kms