Miles between Denver, CO and San Marcos, CA

There are
1,048 mi
from Denver, CO to San Marcos, CA

That's the driving distance. It would take 18 hours 21 mins to go from Denver, Colorado to San Marcos, California.

The flight distance (direct flight from Denver, CO to San Marcos, CA) is 814.90 mi.

1,048 mi = 1.61 kms