There are
752 mi
from Dayton, OH to New Ulm, MN
That's the driving distance. It would take 14 hours 19 mins to go from Dayton, Ohio to New Ulm, Minnesota.
The flight distance (direct flight from Dayton, OH to New Ulm, MN) is 613.08 mi.
752 mi = 1,210.11 kms