WN 2543 then AS 307 at LAX
St Louis → Los Angeles → San Francisco
Timetable, Los Angeles time
07:10WN 2543 from St Louis at the gate
20:07AS 307 to San Francisco leaves the gate
12 h 57 apart on the timetable
AS 307 leaves 12 h 57 after WN 2543 arrives on the timetable: more than half a day, so not a connection we count.