There are
1,605 mi
from Thornton, CO to Waynesboro, PA
That's the driving distance. It would take 1 day 5 hours to go from Thornton, Colorado to Waynesboro, Pennsylvania.
The flight distance (direct flight from Thornton, CO to Waynesboro, PA) is 1,448.19 mi.
1,605 mi = 1.61 kms