There are
1,705 mi
from Allentown, PA to Arvada, CO
That's the driving distance. It would take 1 day 6 hours to go from Allentown, Pennsylvania to Arvada, Colorado.
The flight distance (direct flight from Allentown, PA to Arvada, CO) is 1,555.41 mi.
1,705 mi = 1.61 kms