There are
966 mi
from Pella, IA to Pasadena, TX
That's the driving distance. It would take 18 hours 7 mins to go from Pella, Iowa to Pasadena, Texas.
The flight distance (direct flight from Pella, IA to Pasadena, TX) is 819.66 mi.
966 mi = 1,555.15 kms