Miles between Portland, ME and San Mateo, CA

There are
3,224 mi
from Portland, ME to San Mateo, CA

That's the driving distance. It would take 2 days 9 hours to go from Portland, Maine to San Mateo, California.

The flight distance (direct flight from Portland, ME to San Mateo, CA) is 2,718.22 mi.

3,224 mi = 5,187.85 kms