Miles between Thornton, CO and Herndon, VA

There are
1,657 mi
from Thornton, CO to Herndon, VA

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

The flight distance (direct flight from Thornton, CO to Herndon, VA) is 1,467.89 mi.

1,657 mi = 1.61 kms