VA 8451 then AV 2352 at San Francisco
Philadelphia → San Francisco → Burbank
Timetable, San Francisco time
12:32VA 8451 from Philadelphia at the gate
07:15AV 2352 to Burbank leaves the gate
18 h 43 apart on the timetable, overnight
AV 2352 leaves 18 h 43 after VA 8451 arrives on the timetable: more than half a day, so not a connection we count.