DL 349 then DL 2423 at Atlanta
Cleveland → Atlanta → Oklahoma City
Timetable, Atlanta time
09:58DL 349 from Cleveland at the gate
22:40DL 2423 to Oklahoma City leaves the gate
12 h 42 apart on the timetable
DL 2423 leaves 12 h 42 after DL 349 arrives on the timetable: more than half a day, so not a connection we count.