There are
941 mi
from Pasadena, TX to Dunedin, FL
That's the driving distance. It would take 18 hours 3 mins to go from Pasadena, Texas to Dunedin, Florida.
The flight distance (direct flight from Pasadena, TX to Dunedin, FL) is 761.06 mi.
941 mi = 1,513.94 kms