AS 279 then DL 5679 at Boston
Seattle → Boston → Louisville
Timetable, Boston time
17:17AS 279 from Seattle at the gate
09:55DL 5679 to Louisville leaves the gate
16 h 38 apart on the timetable, overnight
DL 5679 leaves 16 h 38 after AS 279 arrives on the timetable: more than half a day, so not a connection we count.