WN 3728 then DL 1697 at Phoenix
San Diego → Phoenix → Boston
Timetable, Phoenix time
22:55WN 3728 from San Diego at the gate
14:20DL 1697 to Boston leaves the gate
15 h 25 apart on the timetable, overnight
DL 1697 leaves 15 h 25 after WN 3728 arrives on the timetable: more than half a day, so not a connection we count.