WN 191 then B6 278 at San Francisco
St Louis → San Francisco → Fort Lauderdale
Timetable, San Francisco time
10:50WN 191 from St Louis at the gate
23:25B6 278 to Fort Lauderdale leaves the gatealso AD 7694
12 h 35 apart on the timetable
B6 278 leaves 12 h 35 after WN 191 arrives on the timetable: more than half a day, so not a connection we count.