AA 2475 then K4 550 at O'Hare
Los Angeles → Chicago → Tokyo Narita
Timetable, Chicago time
05:02AA 2475 from Los Angeles at the gate
04:15K4 550 to Tokyo Narita leaves the gate
23 h 13 apart on the timetable, overnight
K4 550 leaves 23 h 13 after AA 2475 arrives on the timetable: more than half a day, so not a connection we count.