Miles between Longmont, CO and Glen Ellyn, IL

There are
981 mi
from Longmont, CO to Glen Ellyn, IL

That's the driving distance. It would take 17 hours 32 mins to go from Longmont, Colorado to Glen Ellyn, Illinois.

The flight distance (direct flight from Longmont, CO to Glen Ellyn, IL) is 894.31 mi.

981 mi = 1,578.26 kms