OO 391 then F9 2530 at Detroit
Chicago O'Hare → Detroit → Orlando
Timetable, Detroit time
16:22OO 391 from Chicago O'Hare at the gate
09:47F9 2530 to Orlando leaves the gate
17 h 25 apart on the timetable, overnight
F9 2530 leaves 17 h 25 after OO 391 arrives on the timetable: more than half a day, so not a connection we count.