AA 6514 then CV 251 at O'Hare
South Bend → Chicago → Dallas-Fort Worth
Timetable, Chicago time
06:14AA 6514 from South Bend at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
15 h 56 apart on the timetable
CV 251 leaves 15 h 56 after AA 6514 arrives on the timetable: more than half a day, so not a connection we count.