Miles between Thornton, CO and Algonquin, IL

There are
973 mi
from Thornton, CO to Algonquin, IL

That's the driving distance. It would take 17 hours 23 mins to go from Thornton, Colorado to Algonquin, Illinois.

The flight distance (direct flight from Thornton, CO to Algonquin, IL) is 882.32 mi.

973 mi = 1,565.95 kms