There are
2,408 mi
from San Marcos, CA to New Port Richey, FL
That's the driving distance. It would take 1 day 18 hours to go from San Marcos, California to New Port Richey, Florida.
The flight distance (direct flight from San Marcos, CA to New Port Richey, FL) is 2,065.01 mi.
2,408 mi = 3.22 kms