There are
1,815 mi
from Huntsville, AL to Rexburg, ID
That's the driving distance. It would take 1 day 9 hours to go from Huntsville, Alabama to Rexburg, Idaho.
The flight distance (direct flight from Huntsville, AL to Rexburg, ID) is 1,479.13 mi.
1,815 mi = 1.61 kms