DL 9941 then DL 5161 at Atlanta
Queretaro → Atlanta → Montgomery
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
17:39DL 5161 to Montgomery leaves the gate
21 h 56 apart on the timetable, overnight
DL 5161 leaves 21 h 56 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.