There are
1,421 mi
from Brownsville, TX to South Elgin, IL
That's the driving distance. It would take 1 day 3 hours to go from Brownsville, Texas to South Elgin, Illinois.
The flight distance (direct flight from Brownsville, TX to South Elgin, IL) is 1,228.87 mi.
1,421 mi = 1.61 kms