There are
1,419 mi
from Oshkosh, WI to Portland, TX
That's the driving distance. It would take 1 day 2 hours to go from Oshkosh, Wisconsin to Portland, Texas.
The flight distance (direct flight from Oshkosh, WI to Portland, TX) is 1,217.25 mi.
1,419 mi = 2,283.91 kms