There are
1,755 mi
from Oshkosh, WI to Caldwell, ID
That's the driving distance. It would take 1 day 6 hours to go from Oshkosh, Wisconsin to Caldwell, Idaho.
The flight distance (direct flight from Oshkosh, WI to Caldwell, ID) is 1,395.87 mi.
1,755 mi = 2,824.01 kms