There are
1,844 mi
from San Antonio, TX to Hempstead, NY
That's the driving distance. It would take 1 day 9 hours to go from San Antonio, Texas to Hempstead, New York.
The flight distance (direct flight from San Antonio, TX to Hempstead, NY) is 1,600.10 mi.
1,844 mi = 1.61 kms