F9 1549 then DL 2416 at Atlanta
Jacksonville → Atlanta → Montréal
Timetable, Atlanta time
21:38F9 1549 from Jacksonville at the gate
21:15DL 2416 to Montréal leaves the gate
23 h 37 apart on the timetable, overnight
DL 2416 leaves 23 h 37 after F9 1549 arrives on the timetable: more than half a day, so not a connection we count.