DL 640 then DL 2862 at Atlanta
San Francisco → Atlanta → Oklahoma City
Timetable, Atlanta time
15:33DL 640 from San Francisco at the gate
15:20DL 2862 to Oklahoma City leaves the gate
23 h 47 apart on the timetable, overnight
DL 2862 leaves 23 h 47 after DL 640 arrives on the timetable: more than half a day, so not a connection we count.