Miles between Longmont, CO and St Marys, PA

There are
1,526 mi
from Longmont, CO to St Marys, PA

That's the driving distance. It would take 1 day 3 hours to go from Longmont, Colorado to St Marys, Pennsylvania.

The flight distance (direct flight from Longmont, CO to St Marys, PA) is 1,386.40 mi.

1,526 mi = 1.61 kms