AA 9950 then B6 112 at O'Hare
Philadelphia → Chicago → Boston
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
13:00B6 112 to Boston leaves the gate
23 h 11 apart on the timetable, overnight
B6 112 leaves 23 h 11 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.