DL 9941 then DL 2275 at Atlanta
Queretaro → Atlanta → Pittsburgh
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
12:25DL 2275 to Pittsburgh leaves the gate
16 h 42 apart on the timetable, overnight
DL 2275 leaves 16 h 42 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.