Miles between Thornton, CO and Buffalo Grove, IL

There are
1,002 mi
from Thornton, CO to Buffalo Grove, IL

That's the driving distance. It would take 17 hours 47 mins to go from Thornton, Colorado to Buffalo Grove, Illinois.

The flight distance (direct flight from Thornton, CO to Buffalo Grove, IL) is 899.23 mi.

1,002 mi = 1.61 kms