There are
1,665 mi
from Dayton, OH to Provo, UT
That's the driving distance. It would take 1 day 5 hours to go from Dayton, Ohio to Provo, Utah.
The flight distance (direct flight from Dayton, OH to Provo, UT) is 1,448.42 mi.
1,665 mi = 2,680.29 kms