There are
2,791 mi
from Allentown, PA to Suisun City, CA
That's the driving distance. It would take 2 days to go from Allentown, Pennsylvania to Suisun City, California.
The flight distance (direct flight from Allentown, PA to Suisun City, CA) is 2,460.83 mi.
2,791 mi = 3.22 kms