There are
1,122 mi
from San Antonio, TX to Kewanee, IL
That's the driving distance. It would take 20 hours 51 mins to go from San Antonio, Texas to Kewanee, Illinois.
The flight distance (direct flight from San Antonio, TX to Kewanee, IL) is 947.73 mi.
1,122 mi = 1.61 kms