There are
1,621 mi
from Idaho Falls, ID to Pasadena, TX
That's the driving distance. It would take 1 day 5 hours to go from Idaho Falls, Idaho to Pasadena, Texas.
The flight distance (direct flight from Idaho Falls, ID to Pasadena, TX) is 1,329.26 mi.
1,621 mi = 2,608.29 kms