AA 1652 then CV 251 at O'Hare
Philadelphia → Chicago → Dallas-Fort Worth
Timetable, Chicago time
07:27AA 1652 from Philadelphia at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
14 h 43 apart on the timetable
CV 251 leaves 14 h 43 after AA 1652 arrives on the timetable: more than half a day, so not a connection we count.