AA 2407 then WN 2989 at San Francisco
Philadelphia → San Francisco → St Louis
Timetable, San Francisco time
11:35AA 2407 from Philadelphia at the gate
11:15WN 2989 to St Louis leaves the gate
23 h 40 apart on the timetable, overnight
WN 2989 leaves 23 h 40 after AA 2407 arrives on the timetable: more than half a day, so not a connection we count.