AA 4504 then UA 2104 at O'Hare
South Bend → Chicago → Palm Springs
Timetable, Chicago time
18:35AA 4504 from South Bend at the gate
09:15UA 2104 to Palm Springs leaves the gate
14 h 40 apart on the timetable, overnight
UA 2104 leaves 14 h 40 after AA 4504 arrives on the timetable: more than half a day, so not a connection we count.