AA 2439 then G7 3378 at O'Hare
Nashville → Chicago → Richmond
Timetable, Chicago time
11:00AA 2439 from Nashville at the gate
08:30G7 3378 to Richmond leaves the gate
21 h 30 apart on the timetable, overnight
G7 3378 leaves 21 h 30 after AA 2439 arrives on the timetable: more than half a day, so not a connection we count.