AA 796 then UA 4645 at O'Hare
New York LaGuardia → Chicago → Fort Wayne
Timetable, Chicago time
14:14AA 796 from New York LaGuardia at the gate
11:25UA 4645 to Fort Wayne leaves the gate
21 h 11 apart on the timetable, overnight
UA 4645 leaves 21 h 11 after AA 796 arrives on the timetable: more than half a day, so not a connection we count.