Miles between Longmont, CO and Mason, OH

There are
1,228 mi
from Longmont, CO to Mason, OH

That's the driving distance. It would take 21 hours 58 mins to go from Longmont, Colorado to Mason, Ohio.

The flight distance (direct flight from Longmont, CO to Mason, OH) is 1,103.18 mi.

1,228 mi = 1.61 kms