AS 2435 then DL 474 at Seattle
Pasco → Seattle → Boston
Timetable, Seattle time
14:59AS 2435 from Pasco at the gate
13:40DL 474 to Boston leaves the gate
22 h 41 apart on the timetable, overnight
DL 474 leaves 22 h 41 after AS 2435 arrives on the timetable: more than half a day, so not a connection we count.