AA 6438 then UA 5863 at LAX
Seattle (SEA) → Los Angeles → San Luis Obispo
Timetable, Los Angeles time
19:33AA 6438 from Seattle (SEA) at the gate
18:55UA 5863 to San Luis Obispo leaves the gate
23 h 22 apart on the timetable, overnight
UA 5863 leaves 23 h 22 after AA 6438 arrives on the timetable: more than half a day, so not a connection we count.