Miles between Thornton, CO and Somerton, AZ

There are
1,011 mi
from Thornton, CO to Somerton, AZ

That's the driving distance. It would take 19 hours 4 mins to go from Thornton, Colorado to Somerton, Arizona.

The flight distance (direct flight from Thornton, CO to Somerton, AZ) is 738.71 mi.

1,011 mi = 1.61 kms