Miles between Allentown, PA and Vacaville, CA

There are
2,780 mi
from Allentown, PA to Vacaville, CA

That's the driving distance. It would take 2 days to go from Allentown, Pennsylvania to Vacaville, California.

The flight distance (direct flight from Allentown, PA to Vacaville, CA) is 2,455.53 mi.

2,780 mi = 3.22 kms