CV 251 then AA 312 at O'Hare
Anchorage → Chicago → Dallas-Fort Worth
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
09:59AA 312 to Dallas-Fort Worth leaves the gate
14 h 59 apart on the timetable, overnight
AA 312 leaves 14 h 59 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.