VA 8059 then UA 1905 at San Francisco
Los Angeles → San Francisco → St Louis
Timetable, San Francisco time
18:02VA 8059 from Los Angeles at the gate
12:15UA 1905 to St Louis leaves the gatealso UA 8167
18 h 13 apart on the timetable, overnight
UA 1905 leaves 18 h 13 after VA 8059 arrives on the timetable: more than half a day, so not a connection we count.