There are
2,699 mi
from Allentown, PA to Susanville, CA
That's the driving distance. It would take 1 day 23 hours to go from Allentown, Pennsylvania to Susanville, California.
The flight distance (direct flight from Allentown, PA to Susanville, CA) is 2,345.62 mi.
2,699 mi = 3.22 kms