There are
2,713 mi
from San Clemente, CA to Cortland, NY
That's the driving distance. It would take 2 days to go from San Clemente, California to Cortland, New York.
The flight distance (direct flight from San Clemente, CA to Cortland, NY) is 2,317.60 mi.
2,713 mi = 4,366.62 kms