There are
811 mi
from Pasadena, TX to Smyrna, TN
That's the driving distance. It would take 14 hours 49 mins to go from Pasadena, Texas to Smyrna, Tennessee.
The flight distance (direct flight from Pasadena, TX to Smyrna, TN) is 665.43 mi.
811 mi = 1,305.48 kms