AA 5815 then AA 1887 at Philadelphia
Richmond → Philadelphia → Kansas City
Timetable, Philadelphia time
07:40AA 5815 from Richmond at the gate
20:00AA 1887 to Kansas City leaves the gate
12 h 20 apart on the timetable
AA 1887 leaves 12 h 20 after AA 5815 arrives on the timetable: more than half a day, so not a connection we count.