There are
1,951 mi
from Boise, ID to Smyrna, TN
That's the driving distance. It would take 1 day 9 hours to go from Boise, Idaho to Smyrna, Tennessee.
The flight distance (direct flight from Boise, ID to Smyrna, TN) is 1,653.01 mi.
1,951 mi = 1.61 kms