WN 4752 then DL 514 at Phoenix
Omaha → Phoenix → Boston
Timetable, Phoenix time
08:00WN 4752 from Omaha at the gate
23:23DL 514 to Boston leaves the gate
15 h 23 apart on the timetable
DL 514 leaves 15 h 23 after WN 4752 arrives on the timetable: more than half a day, so not a connection we count.