AA 9909 then AA 3491 at O'Hare
Waterloo → Chicago → Lansing
Timetable, Chicago time
17:10AA 9909 from Waterloo at the gate
13:18AA 3491 to Lansing leaves the gate
20 h 08 apart on the timetable, overnight
AA 3491 leaves 20 h 08 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.