DL 8842 then AA 3079 at Philadelphia
Washington → Philadelphia → San Francisco
Timetable, Philadelphia time
02:42DL 8842 from Washington at the gate
16:05AA 3079 to San Francisco leaves the gate
13 h 23 apart on the timetable
AA 3079 leaves 13 h 23 after DL 8842 arrives on the timetable: more than half a day, so not a connection we count.