OO 9909 then AA 2416 at O'Hare
Waterloo → Chicago → Houston
Timetable, Chicago time
16:47OO 9909 from Waterloo at the gate
15:13AA 2416 to Houston leaves the gate
22 h 26 apart on the timetable, overnight
AA 2416 leaves 22 h 26 after OO 9909 arrives on the timetable: more than half a day, so not a connection we count.