DL 854 then AA 552 at Atlanta
Springfield → Atlanta → Dallas-Fort Worth
Timetable, Atlanta time
18:50DL 854 from Springfield at the gate
17:07AA 552 to Dallas-Fort Worth leaves the gate
22 h 17 apart on the timetable, overnight
AA 552 leaves 22 h 17 after DL 854 arrives on the timetable: more than half a day, so not a connection we count.