There are
2,695 mi
from Santee, CA to Allentown, PA
That's the driving distance. It would take 2 days to go from Santee, California to Allentown, Pennsylvania.
The flight distance (direct flight from Santee, CA to Allentown, PA) is 2,336.62 mi.
2,695 mi = 4,337.30 kms