UA 4430 then AA 3079 at Philadelphia
Washington → Philadelphia → San Francisco
Timetable, Philadelphia time
14:16UA 4430 from Washington at the gate
13:45AA 3079 to San Francisco leaves the gate
23 h 29 apart on the timetable, overnight
AA 3079 leaves 23 h 29 after UA 4430 arrives on the timetable: more than half a day, so not a connection we count.