There are
2,783 mi
from San Mateo, CA to Dunedin, FL
That's the driving distance. It would take 2 days 2 hours to go from San Mateo, California to Dunedin, Florida.
The flight distance (direct flight from San Mateo, CA to Dunedin, FL) is 2,371.09 mi.
2,783 mi = 4,479.03 kms