DL 9941 then DL 2157 at Atlanta
Queretaro → Atlanta → Charlotte
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
12:21DL 2157 to Charlotte leaves the gate
16 h 38 apart on the timetable, overnight
DL 2157 leaves 16 h 38 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.