Miles between Thornton, CO and Tualatin, OR

There are
1,245 mi
from Thornton, CO to Tualatin, OR

That's the driving distance. It would take 21 hours 27 mins to go from Thornton, Colorado to Tualatin, Oregon.

The flight distance (direct flight from Thornton, CO to Tualatin, OR) is 978.84 mi.

1,245 mi = 1.61 kms