Miles between Thornton, CO and Federal Way, WA

There are
1,298 mi
from Thornton, CO to Federal Way, WA

That's the driving distance. It would take 22 hours 35 mins to go from Thornton, Colorado to Federal Way, Washington.

The flight distance (direct flight from Thornton, CO to Federal Way, WA) is 1,005.75 mi.

1,298 mi = 1.61 kms