Miles between Thornton, CO and Granite City, IL

There are
854 mi
from Thornton, CO to Granite City, IL

That's the driving distance. It would take 15 hours 8 mins to go from Thornton, Colorado to Granite City, Illinois.

The flight distance (direct flight from Thornton, CO to Granite City, IL) is 795.89 mi.

854 mi = 1,374.54 kms