Miles between Thornton, CO and Philadelphia, PA

There are
1,740 mi
from Thornton, CO to Philadelphia, PA

That's the driving distance. It would take 1 day 7 hours to go from Thornton, Colorado to Philadelphia, Pennsylvania.

The flight distance (direct flight from Thornton, CO to Philadelphia, PA) is 1,572.35 mi.

1,740 mi = 1.61 kms