DL 2889 then AS 371 at Seattle
Boston → Seattle → Philadelphia
Timetable, Seattle time
22:05DL 2889 from Boston at the gate
21:28AS 371 to Philadelphia leaves the gate
23 h 23 apart on the timetable, overnight
AS 371 leaves 23 h 23 after DL 2889 arrives on the timetable: more than half a day, so not a connection we count.