AA 2998 then UA 4645 at O'Hare
Los Angeles → Chicago → Fort Wayne
Timetable, Chicago time
15:59AA 2998 from Los Angeles at the gate
11:25UA 4645 to Fort Wayne leaves the gate
19 h 26 apart on the timetable, overnight
UA 4645 leaves 19 h 26 after AA 2998 arrives on the timetable: more than half a day, so not a connection we count.