AA 3572 then 5X 5661 at O'Hare
Columbus (Ohio) → Chicago → Louisville
Timetable, Chicago time
09:04AA 3572 from Columbus (Ohio) at the gate
09:005X 5661 to Louisville leaves the gate
23 h 56 apart on the timetable, overnight
5X 5661 leaves 23 h 56 after AA 3572 arrives on the timetable: more than half a day, so not a connection we count.