AA 9909 then AA 4999 at O'Hare
Waterloo → Chicago → Wichita
Timetable, Chicago time
17:10AA 9909 from Waterloo at the gate
09:42AA 4999 to Wichita leaves the gate
16 h 32 apart on the timetable, overnight
AA 4999 leaves 16 h 32 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.