AA 434 then CV 251 at O'Hare
San Francisco → Chicago → Dallas-Fort Worth
Timetable, Chicago time
06:59AA 434 from San Francisco at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
15 h 11 apart on the timetable
CV 251 leaves 15 h 11 after AA 434 arrives on the timetable: more than half a day, so not a connection we count.