Miles between Thornton, CO and Renton, WA

There are
1,293 mi
from Thornton, CO to Renton, WA

That's the driving distance. It would take 22 hours 25 mins to go from Thornton, Colorado to Renton, Washington.

The flight distance (direct flight from Thornton, CO to Renton, WA) is 1,006.34 mi.

1,293 mi = 1.61 kms