There are
1,554 mi
from Nampa, ID to Gainesville, TX
That's the driving distance. It would take 1 day 3 hours to go from Nampa, Idaho to Gainesville, Texas.
The flight distance (direct flight from Nampa, ID to Gainesville, TX) is 1,248.36 mi.
1,554 mi = 2,500.46 kms