AA 9909 then UA 4482 at O'Hare
Waterloo → Chicago → Columbia Metropolitan
Timetable, Chicago time
17:10AA 9909 from Waterloo at the gate
13:55UA 4482 to Columbia Metropolitan leaves the gate
20 h 45 apart on the timetable, overnight
UA 4482 leaves 20 h 45 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.