CV 78 then AA 1785 at O'Hare
Dallas-Fort Worth → Chicago → San Diego
Timetable, Chicago time
20:02CV 78 from Dallas-Fort Worth at the gate
20:01AA 1785 to San Diego leaves the gate
23 h 59 apart on the timetable, overnight
AA 1785 leaves 23 h 59 after CV 78 arrives on the timetable: more than half a day, so not a connection we count.