DL 9941 then AA 2910 at Atlanta
Queretaro → Atlanta → Chicago O'Hare
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
15:15AA 2910 to Chicago O'Hare leaves the gate
19 h 32 apart on the timetable, overnight
AA 2910 leaves 19 h 32 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.