There are
2,920 mi
from La Mesa, CA to Plattsburgh, NY
That's the driving distance. It would take 2 days 4 hours to go from La Mesa, California to Plattsburgh, New York.
The flight distance (direct flight from La Mesa, CA to Plattsburgh, NY) is 2,455.31 mi.
2,920 mi = 4,699.19 kms