There are
2,747 mi
from Allentown, PA to Issaquah, WA
That's the driving distance. It would take 2 days to go from Allentown, Pennsylvania to Issaquah, Washington.
The flight distance (direct flight from Allentown, PA to Issaquah, WA) is 2,323.22 mi.
2,747 mi = 4,420.82 kms