There are
704 mi
from Las Cruces, NM to Rockwall, TX
That's the driving distance. It would take 12 hours 4 mins to go from Las Cruces, New Mexico to Rockwall, Texas.
The flight distance (direct flight from Las Cruces, NM to Rockwall, TX) is 600.86 mi.
704 mi = 1,133.46 kms