Miles between San Marcos, CA and Portland, ME

There are
3,125 mi
from San Marcos, CA to Portland, ME

That's the driving distance. It would take 2 days 8 hours to go from San Marcos, California to Portland, Maine.

The flight distance (direct flight from San Marcos, CA to Portland, ME) is 2,604.56 mi.

3,125 mi = 5,029.11 kms