JL 56 then CV 251 at O'Hare
Tokyo Narita → Chicago → Dallas-Fort Worth
Timetable, Chicago time
07:30JL 56 from Tokyo Narita at the gate
03:00CV 251 to Dallas-Fort Worth leaves the gate
19 h 30 apart on the timetable, overnight
CV 251 leaves 19 h 30 after JL 56 arrives on the timetable: more than half a day, so not a connection we count.