B6 1097 then DL 5375 at Atlanta
Boston → Atlanta → Montgomery
Timetable, Atlanta time
11:04B6 1097 from Boston at the gate
23:05DL 5375 to Montgomery leaves the gate
12 h 01 apart on the timetable
DL 5375 leaves 12 h 01 after B6 1097 arrives on the timetable: more than half a day, so not a connection we count.