DL 1634 then AA 6364 at O'Hare
Los Angeles → Chicago → Waterloo
Timetable, Chicago time
23:55DL 1634 from Los Angeles at the gate
22:15AA 6364 to Waterloo leaves the gate
22 h 20 apart on the timetable, overnight
AA 6364 leaves 22 h 20 after DL 1634 arrives on the timetable: more than half a day, so not a connection we count.