AA 3827 then CV 251 at O'Hare
Rochester (ROC) → Chicago → Dallas-Fort Worth
Timetable, Chicago time
06:19AA 3827 from Rochester (ROC) at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
15 h 51 apart on the timetable
CV 251 leaves 15 h 51 after AA 3827 arrives on the timetable: more than half a day, so not a connection we count.