Miles between Thornton, CO and Milwaukie, OR

There are
1,236 mi
from Thornton, CO to Milwaukie, OR

That's the driving distance. It would take 21 hours 19 mins to go from Thornton, Colorado to Milwaukie, Oregon.

The flight distance (direct flight from Thornton, CO to Milwaukie, OR) is 974.28 mi.

1,236 mi = 1.61 kms