There are
1,790 mi
from St Petersburg, FL to Las Cruces, NM
That's the driving distance. It would take 1 day 7 hours to go from St Petersburg, Florida to Las Cruces, New Mexico.
The flight distance (direct flight from St Petersburg, FL to Las Cruces, NM) is 1,473.24 mi.
1,790 mi = 1.61 kms