F9 4076 then DL 9963 at Atlanta
Houston → Atlanta → Queretaro
Timetable, Atlanta time
15:44F9 4076 from Houston at the gate
09:30DL 9963 to Queretaro leaves the gate
17 h 46 apart on the timetable, overnight
DL 9963 leaves 17 h 46 after F9 4076 arrives on the timetable: more than half a day, so not a connection we count.