WN 3960 then DL 1697 at Phoenix
Sacramento → Phoenix → Boston
Timetable, Phoenix time
14:25WN 3960 from Sacramento at the gate
14:20DL 1697 to Boston leaves the gate
23 h 55 apart on the timetable, overnight
DL 1697 leaves 23 h 55 after WN 3960 arrives on the timetable: more than half a day, so not a connection we count.