WN 2860 then DL 514 at Phoenix
Denver → Phoenix → Boston
Timetable, Phoenix time
09:15WN 2860 from Denver at the gate
23:23DL 514 to Boston leaves the gate
14 h 08 apart on the timetable
DL 514 leaves 14 h 08 after WN 2860 arrives on the timetable: more than half a day, so not a connection we count.