AA 2202 then QF 7554 at O'Hare
Buffalo → Chicago → Dallas-Fort Worth
Timetable, Chicago time
20:00AA 2202 from Buffalo at the gate
13:37QF 7554 to Dallas-Fort Worth leaves the gate
17 h 37 apart on the timetable, overnight
QF 7554 leaves 17 h 37 after AA 2202 arrives on the timetable: more than half a day, so not a connection we count.