AS 459 then DL 560 at Seattle
Boston → Seattle → Atlanta
Timetable, Seattle time
10:39AS 459 from Boston at the gate
23:40DL 560 to Atlanta leaves the gate
13 h 01 apart on the timetable
DL 560 leaves 13 h 01 after AS 459 arrives on the timetable: more than half a day, so not a connection we count.