VA 8311 then AF 8943 at San Francisco
Boston → San Francisco → Atlanta
Timetable, San Francisco time
11:54VA 8311 from Boston at the gate
11:38AF 8943 to Atlanta leaves the gate
23 h 44 apart on the timetable, overnight
AF 8943 leaves 23 h 44 after VA 8311 arrives on the timetable: more than half a day, so not a connection we count.