There are
2,827 mi
from Pasadena, CA to Danbury, CT
That's the driving distance. It would take 2 days 2 hours to go from Pasadena, California to Danbury, Connecticut.
The flight distance (direct flight from Pasadena, CA to Danbury, CT) is 2,463.57 mi.
2,827 mi = 3.22 kms