Miles between Longmont, CO and Romeoville, IL

There are
985 mi
from Longmont, CO to Romeoville, IL

That's the driving distance. It would take 17 hours 33 mins to go from Longmont, Colorado to Romeoville, Illinois.

The flight distance (direct flight from Longmont, CO to Romeoville, IL) is 892.76 mi.

985 mi = 1,584.97 kms