WN 3729 then DL 1697 at Phoenix
San Diego → Phoenix → Boston
Timetable, Phoenix time
17:40WN 3729 from San Diego at the gate
14:20DL 1697 to Boston leaves the gate
20 h 40 apart on the timetable, overnight
DL 1697 leaves 20 h 40 after WN 3729 arrives on the timetable: more than half a day, so not a connection we count.