AA 3338 then CV 251 at O'Hare
Marquette → Chicago → Dallas-Fort Worth
Timetable, Chicago time
08:46AA 3338 from Marquette at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
13 h 24 apart on the timetable
CV 251 leaves 13 h 24 after AA 3338 arrives on the timetable: more than half a day, so not a connection we count.