UA 658 then GG 9723 at O'Hare
Minneapolis → Chicago → Tokyo Narita
Timetable, Chicago time
18:29UA 658 from Minneapolis at the gate
10:30GG 9723 to Tokyo Narita leaves the gate
16 h 01 apart on the timetable, overnight
GG 9723 leaves 16 h 01 after UA 658 arrives on the timetable: more than half a day, so not a connection we count.