There are
407 mi
from Las Cruces, NM to Fountain Hills, AZ
That's the driving distance. It would take 7 hours 10 mins to go from Las Cruces, New Mexico to Fountain Hills, Arizona.
The flight distance (direct flight from Las Cruces, NM to Fountain Hills, AZ) is 301.85 mi.
407 mi = 654.82 kms