Miles between Thornton, CO and Washington, DC

There are
1,678 mi
from Thornton, CO to Washington, DC

That's the driving distance. It would take 1 day 6 hours to go from Thornton, Colorado to Washington, District of Columbia.

The flight distance (direct flight from Thornton, CO to Washington, DC) is 1,487.33 mi.

1,678 mi = 1.61 kms