There are
1,573 mi
from Brownsville, TX to Oshkosh, WI
That's the driving distance. It would take 1 day 5 hours to go from Brownsville, Texas to Oshkosh, Wisconsin.
The flight distance (direct flight from Brownsville, TX to Oshkosh, WI) is 1,348.91 mi.
1,573 mi = 2,531.67 kms