DL 2856 then DL 2020 at Atlanta
Detroit → Atlanta → Oklahoma City
Timetable, Atlanta time
12:36DL 2856 from Detroit at the gate
11:20DL 2020 to Oklahoma City leaves the gate
22 h 44 apart on the timetable, overnight
DL 2020 leaves 22 h 44 after DL 2856 arrives on the timetable: more than half a day, so not a connection we count.