Miles between Thornton, CO and Sunnyside, WA

There are
1,118 mi
from Thornton, CO to Sunnyside, WA

That's the driving distance. It would take 19 hours 8 mins to go from Thornton, Colorado to Sunnyside, Washington.

The flight distance (direct flight from Thornton, CO to Sunnyside, WA) is 877.93 mi.

1,118 mi = 1.61 kms