AA 6290 then AS 437 at LAX
Portland (Oregon) → Los Angeles → Puerto Vallarta
Timetable, Los Angeles time
09:38AA 6290 from Portland (Oregon) at the gate
09:35AS 437 to Puerto Vallarta leaves the gate
23 h 57 apart on the timetable, overnight
AS 437 leaves 23 h 57 after AA 6290 arrives on the timetable: more than half a day, so not a connection we count.