There are
2,833 mi
from San Clemente, CA to Poughkeepsie, NY
That's the driving distance. It would take 2 days 2 hours to go from San Clemente, California to Poughkeepsie, New York.
The flight distance (direct flight from San Clemente, CA to Poughkeepsie, NY) is 2,432.86 mi.
2,833 mi = 4,558.66 kms