Miles between Thornton, CO and Bethlehem, PA

There are
1,707 mi
from Thornton, CO to Bethlehem, PA

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

The flight distance (direct flight from Thornton, CO to Bethlehem, PA) is 1,554.58 mi.

1,707 mi = 1.61 kms