AA 4504 then UA 1967 at O'Hare
South Bend → Chicago → Los Angeles
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
17:52UA 1967 to Los Angeles leaves the gate
23 h 17 apart on the timetable, overnight
UA 1967 leaves 23 h 17 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.