DL 519 then AA 1322 at Denver
Atlanta → Denver → Dallas-Fort Worth
Timetable, Denver time
18:31DL 519 from Atlanta at the gate
18:30AA 1322 to Dallas-Fort Worth leaves the gate
23 h 59 apart on the timetable, overnight
AA 1322 leaves 23 h 59 after DL 519 arrives on the timetable: more than half a day, so not a connection we count.