There are
1,281 mi
from Longmont, CO to Hilliard, OH
That's the driving distance. It would take 23 hours 2 mins to go from Longmont, Colorado to Hilliard, Ohio.
The flight distance (direct flight from Longmont, CO to Hilliard, OH) is 1,156.82 mi.
1,281 mi = 1.61 kms