There are
2,736 mi
from Allentown, PA to Marysville, CA
That's the driving distance. It would take 2 days to go from Allentown, Pennsylvania to Marysville, California.
The flight distance (direct flight from Allentown, PA to Marysville, CA) is 2,418.27 mi.
2,736 mi = 3.22 kms