Miles between Allentown, PA and Centennial, CO

There are
1,719 mi
from Allentown, PA to Centennial, CO

That's the driving distance. It would take 1 day 6 hours to go from Allentown, Pennsylvania to Centennial, Colorado.

The flight distance (direct flight from Allentown, PA to Centennial, CO) is 1,547.65 mi.

1,719 mi = 1.61 kms