There are
1,953 mi
from Boise, ID to Flint, MI
That's the driving distance. It would take 1 day 9 hours to go from Boise, Idaho to Flint, Michigan.
The flight distance (direct flight from Boise, ID to Flint, MI) is 1,626.41 mi.
1,953 mi = 3,142.48 kms