There are
1,559 mi
from Oshkosh, WI to Weslaco, TX
That's the driving distance. It would take 1 day 4 hours to go from Oshkosh, Wisconsin to Weslaco, Texas.
The flight distance (direct flight from Oshkosh, WI to Weslaco, TX) is 1,342.75 mi.
1,559 mi = 2,508.24 kms