AS 792 then DL 438 at Seattle
San Diego → Seattle → Boston
Timetable, Seattle time
12:28AS 792 from San Diego at the gate
11:45DL 438 to Boston leaves the gate
23 h 17 apart on the timetable, overnight
DL 438 leaves 23 h 17 after AS 792 arrives on the timetable: more than half a day, so not a connection we count.