There are
1,546 mi
from Pasadena, TX to Duarte, CA
That's the driving distance. It would take 1 day 2 hours to go from Pasadena, Texas to Duarte, California.
The flight distance (direct flight from Pasadena, TX to Duarte, CA) is 1,367.09 mi.
1,546 mi = 1.61 kms