There are
1,714 mi
from Mt Vernon, NY to Harker Heights, TX
That's the driving distance. It would take 1 day 7 hours to go from Mt Vernon, New York to Harker Heights, Texas.
The flight distance (direct flight from Mt Vernon, NY to Harker Heights, TX) is 1,488.07 mi.
1,714 mi = 1.61 kms