There are
2,977 mi
from Pasadena, CA to Watertown, MA
That's the driving distance. It would take 2 days 5 hours to go from Pasadena, California to Watertown, Massachusetts.
The flight distance (direct flight from Pasadena, CA to Watertown, MA) is 2,576.49 mi.
2,977 mi = 3.22 kms