AA 428 then CV 251 at O'Hare
Portland (Oregon) → Chicago → Dallas-Fort Worth
Timetable, Chicago time
05:07AA 428 from Portland (Oregon) at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
17 h 03 apart on the timetable
CV 251 leaves 17 h 03 after AA 428 arrives on the timetable: more than half a day, so not a connection we count.