There are
680 mi
from Mckinney, TX to Keokuk, IA
That's the driving distance. It would take 13 hours 8 mins to go from Mckinney, Texas to Keokuk, Iowa.
The flight distance (direct flight from Mckinney, TX to Keokuk, IA) is 575.97 mi.
680 mi = 1,093.90 kms