ET 3608 then AA 5247 at O'Hare
Anchorage → Chicago → Dayton
Timetable, Chicago time
07:16ET 3608 from Anchorage at the gate
19:27AA 5247 to Dayton leaves the gate
12 h 11 apart on the timetable
AA 5247 leaves 12 h 11 after ET 3608 arrives on the timetable: more than half a day, so not a connection we count.