Miles between Portland, ME and San Marcos, CA

There are
3,122 mi
from Portland, ME to San Marcos, CA

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

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

3,122 mi = 5,024.39 kms