B6 1397 then DL 2862 at Atlanta
Boston → Atlanta → Oklahoma City
Timetable, Atlanta time
15:32B6 1397 from Boston at the gate
15:15DL 2862 to Oklahoma City leaves the gate
23 h 43 apart on the timetable, overnight
DL 2862 leaves 23 h 43 after B6 1397 arrives on the timetable: more than half a day, so not a connection we count.