F9 1563 then DL 2597 at Atlanta
Orlando → Atlanta → Montréal
Timetable, Atlanta time
09:02F9 1563 from Orlando at the gate
09:00DL 2597 to Montréal leaves the gate
23 h 58 apart on the timetable, overnight
DL 2597 leaves 23 h 58 after F9 1563 arrives on the timetable: more than half a day, so not a connection we count.