Miles between Longmont, CO and Sussex, WI

There are
1,020 mi
from Longmont, CO to Sussex, WI

That's the driving distance. It would take 18 hours 39 mins to go from Longmont, Colorado to Sussex, Wisconsin.

The flight distance (direct flight from Longmont, CO to Sussex, WI) is 893.57 mi.

1,020 mi = 1.61 kms