WN 968 then DL 1329 at Atlanta
Washington National → Atlanta → Philadelphia
Timetable, Atlanta time
17:55WN 968 from Washington National at the gate
16:59DL 1329 to Philadelphia leaves the gate
23 h 04 apart on the timetable, overnight
DL 1329 leaves 23 h 04 after WN 968 arrives on the timetable: more than half a day, so not a connection we count.