AA 894 then QF 7554 at O'Hare
Boston → Chicago → Dallas-Fort Worth
Timetable, Chicago time
14:18AA 894 from Boston at the gate
13:37QF 7554 to Dallas-Fort Worth leaves the gate
23 h 19 apart on the timetable, overnight
QF 7554 leaves 23 h 19 after AA 894 arrives on the timetable: more than half a day, so not a connection we count.