AA 2925 then GG 4955 at O'Hare
Boston → Chicago → Seoul
Timetable, Chicago time
21:54AA 2925 from Boston at the gate
17:55GG 4955 to Seoul leaves the gate
20 h 01 apart on the timetable, overnight
GG 4955 leaves 20 h 01 after AA 2925 arrives on the timetable: more than half a day, so not a connection we count.