DL 2909 then DL 9936 at Atlanta
Columbus (Ohio) → Atlanta → Queretaro
Timetable, Atlanta time
08:48DL 2909 from Columbus (Ohio) at the gate
08:00DL 9936 to Queretaro leaves the gate
23 h 12 apart on the timetable, overnight
DL 9936 leaves 23 h 12 after DL 2909 arrives on the timetable: more than half a day, so not a connection we count.