DL 2894 then DL 2862 at Atlanta
Chicago O'Hare → Atlanta → Oklahoma City
Timetable, Atlanta time
16:25DL 2894 from Chicago O'Hare at the gate
15:20DL 2862 to Oklahoma City leaves the gate
22 h 55 apart on the timetable, overnight
DL 2862 leaves 22 h 55 after DL 2894 arrives on the timetable: more than half a day, so not a connection we count.