There are
1,451 mi
from Pasadena, TX to Las Vegas, NV
That's the driving distance. It would take 1 day 1 hour to go from Pasadena, Texas to Las Vegas, Nevada.
The flight distance (direct flight from Pasadena, TX to Las Vegas, NV) is 1,243.41 mi.
1,451 mi = 2,334.40 kms