There are
1,894 mi
from Nampa, ID to Mcallen, TX
That's the driving distance. It would take 1 day 10 hours to go from Nampa, Idaho to Mcallen, Texas.
The flight distance (direct flight from Nampa, ID to Mcallen, TX) is 1,578.46 mi.
1,894 mi = 3,048.67 kms