DL 1045 then DL 474 at Seattle
Los Angeles → Seattle → Boston
Timetable, Seattle time
15:10DL 1045 from Los Angeles at the gate
13:40DL 474 to Boston leaves the gate
22 h 30 apart on the timetable, overnight
DL 474 leaves 22 h 30 after DL 1045 arrives on the timetable: more than half a day, so not a connection we count.