B6 837 then F9 4286 at Detroit
Boston → Detroit → Orlando
Timetable, Detroit time
11:19B6 837 from Boston at the gate
09:47F9 4286 to Orlando leaves the gate
22 h 28 apart on the timetable, overnight
F9 4286 leaves 22 h 28 after B6 837 arrives on the timetable: more than half a day, so not a connection we count.