DL 3685 then DL 2597 at Atlanta
Fargo → Atlanta → Montréal
Timetable, Atlanta time
10:03DL 3685 from Fargo at the gate
09:00DL 2597 to Montréal leaves the gate
22 h 57 apart on the timetable, overnight
DL 2597 leaves 22 h 57 after DL 3685 arrives on the timetable: more than half a day, so not a connection we count.