DL 5554 then DL 2597 at Atlanta
Macon → Atlanta → Montréal
Timetable, Atlanta time
09:37DL 5554 from Macon at the gate
09:00DL 2597 to Montréal leaves the gate
23 h 23 apart on the timetable, overnight
DL 2597 leaves 23 h 23 after DL 5554 arrives on the timetable: more than half a day, so not a connection we count.