AA 9909 then UA 5679 at O'Hare
Waterloo → Chicago → Fargo
Timetable, Chicago time
17:10AA 9909 from Waterloo at the gate
12:45UA 5679 to Fargo leaves the gate
19 h 35 apart on the timetable, overnight
UA 5679 leaves 19 h 35 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.