Miles between Longmont, CO and Buffalo Grove, IL

There are
1,007 mi
from Longmont, CO to Buffalo Grove, IL

That's the driving distance. It would take 18 hours 3 mins to go from Longmont, Colorado to Buffalo Grove, Illinois.

The flight distance (direct flight from Longmont, CO to Buffalo Grove, IL) is 900.51 mi.

1,007 mi = 1.61 kms