AA 859 then AS 437 at LAX
Dallas-Fort Worth → Los Angeles → Puerto Vallarta
Timetable, Los Angeles time
09:50AA 859 from Dallas-Fort Worth at the gate
09:35AS 437 to Puerto Vallarta leaves the gate
23 h 45 apart on the timetable, overnight
AS 437 leaves 23 h 45 after AA 859 arrives on the timetable: more than half a day, so not a connection we count.