There are
2,012 mi
from Las Cruces, NM to Rockville, MD
That's the driving distance. It would take 1 day 11 hours to go from Las Cruces, New Mexico to Rockville, Maryland.
The flight distance (direct flight from Las Cruces, NM to Rockville, MD) is 1,717.36 mi.
2,012 mi = 3.22 kms