There are
1,091 mi
from Dayton, OH to Stephenville, TX
That's the driving distance. It would take 19 hours 42 mins to go from Dayton, Ohio to Stephenville, Texas.
The flight distance (direct flight from Dayton, OH to Stephenville, TX) is 938.85 mi.
1,091 mi = 1.61 kms