Miles between Thornton, CO and Auburn, WA

There are
1,294 mi
from Thornton, CO to Auburn, WA

That's the driving distance. It would take 22 hours 26 mins to go from Thornton, Colorado to Auburn, Washington.

The flight distance (direct flight from Thornton, CO to Auburn, WA) is 1,001.70 mi.

1,294 mi = 1.61 kms