AA 1236 then DL 1269 at Philadelphia
San Diego → Philadelphia → Atlanta
Timetable, Philadelphia time
05:33AA 1236 from San Diego at the gate
05:15DL 1269 to Atlanta leaves the gate
23 h 42 apart on the timetable, overnight
DL 1269 leaves 23 h 42 after AA 1236 arrives on the timetable: more than half a day, so not a connection we count.