There are
1,557 mi
from Boise, ID to Saginaw, TX
That's the driving distance. It would take 1 day 3 hours to go from Boise, Idaho to Saginaw, Texas.
The flight distance (direct flight from Boise, ID to Saginaw, TX) is 1,260.45 mi.
1,557 mi = 1.61 kms