There are
1,828 mi
from Waltham, MA to Pasadena, TX
That's the driving distance. It would take 1 day 10 hours to go from Waltham, Massachusetts to Pasadena, Texas.
The flight distance (direct flight from Waltham, MA to Pasadena, TX) is 1,591.93 mi.
1,828 mi = 2,942.11 kms