AA 9928 then 5X 603 at O'Hare
New York LaGuardia → Chicago → Louisville
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
22:305X 603 to Louisville leaves the gate
15 h 45 apart on the timetable
5X 603 leaves 15 h 45 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.