Miles between Longmont, CO and Grand Terrace, CA

There are
1,003 mi
from Longmont, CO to Grand Terrace, CA

That's the driving distance. It would take 17 hours 35 mins to go from Longmont, Colorado to Grand Terrace, California.

The flight distance (direct flight from Longmont, CO to Grand Terrace, CA) is 794.15 mi.

1,003 mi = 1.61 kms