AA 4344 then UA 4645 at O'Hare
Memphis → Chicago → Fort Wayne
Timetable, Chicago time
12:41AA 4344 from Memphis at the gate
11:25UA 4645 to Fort Wayne leaves the gate
22 h 44 apart on the timetable, overnight
UA 4645 leaves 22 h 44 after AA 4344 arrives on the timetable: more than half a day, so not a connection we count.