F9 2111 then K4 556 at O'Hare
Philadelphia → Chicago → Tokyo Narita
Timetable, Chicago time
22:43F9 2111 from Philadelphia at the gate
16:00K4 556 to Tokyo Narita leaves the gate
17 h 17 apart on the timetable, overnight
K4 556 leaves 17 h 17 after F9 2111 arrives on the timetable: more than half a day, so not a connection we count.