There are
1,610 mi
from Nampa, ID to Harker Heights, TX
That's the driving distance. It would take 1 day 5 hours to go from Nampa, Idaho to Harker Heights, Texas.
The flight distance (direct flight from Nampa, ID to Harker Heights, TX) is 1,343.35 mi.
1,610 mi = 2,590.80 kms