DL 5161 then DL 746 at Atlanta
Montgomery → Atlanta → Denver
Timetable, Atlanta time
20:35DL 5161 from Montgomery at the gate
18:58DL 746 to Denver leaves the gate
22 h 23 apart on the timetable, overnight
DL 746 leaves 22 h 23 after DL 5161 arrives on the timetable: more than half a day, so not a connection we count.