There are
992 mi
from Dayton, OH to Seagoville, TX
That's the driving distance. It would take 17 hours 49 mins to go from Dayton, Ohio to Seagoville, Texas.
The flight distance (direct flight from Dayton, OH to Seagoville, TX) is 844.77 mi.
992 mi = 1,596.18 kms