DL 1236 then DL 2597 at Atlanta
Milwaukee → Atlanta → Montréal
Timetable, Atlanta time
10:08DL 1236 from Milwaukee at the gate
09:00DL 2597 to Montréal leaves the gate
22 h 52 apart on the timetable, overnight
DL 2597 leaves 22 h 52 after DL 1236 arrives on the timetable: more than half a day, so not a connection we count.