AA 3171 then 5X 603 at O'Hare
Phoenix → Chicago → Louisville
Timetable, Chicago time
09:31AA 3171 from Phoenix at the gate
22:305X 603 to Louisville leaves the gate
12 h 59 apart on the timetable
5X 603 leaves 12 h 59 after AA 3171 arrives on the timetable: more than half a day, so not a connection we count.