There are
1,112 mi
from Pasadena, TX to Dayton, OH
That's the driving distance. It would take 20 hours 23 mins to go from Pasadena, Texas to Dayton, Ohio.
The flight distance (direct flight from Pasadena, TX to Dayton, OH) is 934.06 mi.
1,112 mi = 1.61 kms