Miles between Longmont, CO and Riverdale, IL

There are
1,003 mi
from Longmont, CO to Riverdale, IL

That's the driving distance. It would take 17 hours 55 mins to go from Longmont, Colorado to Riverdale, Illinois.

The flight distance (direct flight from Longmont, CO to Riverdale, IL) is 916.31 mi.

1,003 mi = 1.61 kms