There are
845 mi
from Las Cruces, NM to Weslaco, TX
That's the driving distance. It would take 14 hours 17 mins to go from Las Cruces, New Mexico to Weslaco, Texas.
The flight distance (direct flight from Las Cruces, NM to Weslaco, TX) is 678.45 mi.
845 mi = 1,359.78 kms