UA 244 then NH 8407 at LAX
Puerto Vallarta → Los Angeles → Tokyo Narita
Timetable, Los Angeles time
17:35UA 244 from Puerto Vallarta at the gate
17:13NH 8407 to Tokyo Narita leaves the gate
23 h 38 apart on the timetable, overnight
NH 8407 leaves 23 h 38 after UA 244 arrives on the timetable: more than half a day, so not a connection we count.