There are
1,038 mi
from Oshkosh, WI to Longmont, CO
That's the driving distance. It would take 19 hours 7 mins to go from Oshkosh, Wisconsin to Longmont, Colorado.
The flight distance (direct flight from Oshkosh, WI to Longmont, CO) is 888.03 mi.
1,038 mi = 1,670.78 kms