DL 9941 then DL 5508 at Atlanta
Queretaro → Atlanta → Tri-Cities
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
17:20DL 5508 to Tri-Cities leaves the gate
21 h 37 apart on the timetable, overnight
DL 5508 leaves 21 h 37 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.