DL 5379 then DL 919 at Atlanta
Montgomery → Atlanta → Las Vegas
Timetable, Atlanta time
18:21DL 5379 from Montgomery at the gate
18:20DL 919 to Las Vegas leaves the gate
23 h 59 apart on the timetable, overnight
DL 919 leaves 23 h 59 after DL 5379 arrives on the timetable: more than half a day, so not a connection we count.