Miles between Thornton, CO and Harrison, AR

There are
840 mi
from Thornton, CO to Harrison, AR

That's the driving distance. It would take 14 hours 57 mins to go from Thornton, Colorado to Harrison, Arkansas.

The flight distance (direct flight from Thornton, CO to Harrison, AR) is 692.06 mi.

840 mi = 1,351.75 kms