Miles between San Mateo, CA and Portland, ME

There are
3,228 mi
from San Mateo, CA to Portland, ME

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

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

3,228 mi = 4.83 kms