There are
740 mi
from Shawnee, KS to Pasadena, TX
That's the driving distance. It would take 13 hours 40 mins to go from Shawnee, Kansas to Pasadena, Texas.
The flight distance (direct flight from Shawnee, KS to Pasadena, TX) is 645.38 mi.
740 mi = 1,190.16 kms