There are
1,407 mi
from Southfield, MI to Lockhart, TX
That's the driving distance. It would take 1 day 1 hour to go from Southfield, Michigan to Lockhart, Texas.
The flight distance (direct flight from Southfield, MI to Lockhart, TX) is 1,182.27 mi.
1,407 mi = 2,264.99 kms