F9 2791 then UA 5380 at O'Hare
Orlando → Chicago → Flint
Timetable, Chicago time
08:46F9 2791 from Orlando at the gate
21:20UA 5380 to Flint leaves the gate
12 h 34 apart on the timetable
UA 5380 leaves 12 h 34 after F9 2791 arrives on the timetable: more than half a day, so not a connection we count.