There are
340 mi
from New Braunfels, TX to Ardmore, OK
That's the driving distance. It would take 5 hours 59 mins to go from New Braunfels, Texas to Ardmore, Oklahoma.
The flight distance (direct flight from New Braunfels, TX to Ardmore, OK) is 314.24 mi.
340 mi = 546.90 kms