DL 2444 then DL 560 at Seattle
Phoenix → Seattle → Atlanta
Timetable, Seattle time
08:10DL 2444 from Phoenix at the gate
23:40DL 560 to Atlanta leaves the gate
15 h 30 apart on the timetable
DL 560 leaves 15 h 30 after DL 2444 arrives on the timetable: more than half a day, so not a connection we count.