DL 2391 then DL 1470 at Atlanta
Boston → Atlanta → Kansas City
Timetable, Atlanta time
16:35DL 2391 from Boston at the gate
16:34DL 1470 to Kansas City leaves the gate
23 h 59 apart on the timetable, overnight
DL 1470 leaves 23 h 59 after DL 2391 arrives on the timetable: more than half a day, so not a connection we count.