There are
1,828 mi
from Pasadena, TX to Watertown, MA
That's the driving distance. It would take 1 day 10 hours to go from Pasadena, Texas to Watertown, Massachusetts.
The flight distance (direct flight from Pasadena, TX to Watertown, MA) is 1,594.20 mi.
1,828 mi = 1.61 kms