AA 938 then 5X 603 at O'Hare
Orlando → Chicago → Louisville
Timetable, Chicago time
10:00AA 938 from Orlando at the gate
22:305X 603 to Louisville leaves the gate
12 h 30 apart on the timetable
5X 603 leaves 12 h 30 after AA 938 arrives on the timetable: more than half a day, so not a connection we count.