AA 4435 then 5Y 7143 at O'Hare
Columbus (Ohio) → Chicago → Tokyo Narita
Timetable, Chicago time
21:18AA 4435 from Columbus (Ohio) at the gate
10:055Y 7143 to Tokyo Narita leaves the gate
12 h 47 apart on the timetable, overnight
5Y 7143 leaves 12 h 47 after AA 4435 arrives on the timetable: more than half a day, so not a connection we count.