DL 5614 then AA 1198 at Boston
Milwaukee → Boston → Philadelphia
Timetable, Boston time
16:32DL 5614 from Milwaukee at the gate
16:00AA 1198 to Philadelphia leaves the gate
23 h 28 apart on the timetable, overnight
AA 1198 leaves 23 h 28 after DL 5614 arrives on the timetable: more than half a day, so not a connection we count.