Miles between Longmont, CO and Deerfield, IL

There are
1,011 mi
from Longmont, CO to Deerfield, IL

That's the driving distance. It would take 18 hours 6 mins to go from Longmont, Colorado to Deerfield, Illinois.

The flight distance (direct flight from Longmont, CO to Deerfield, IL) is 906.59 mi.

1,011 mi = 1.61 kms