WN 3434 then DL 514 at Phoenix
Seattle → Phoenix → Boston
Timetable, Phoenix time
09:30WN 3434 from Seattle at the gate
23:23DL 514 to Boston leaves the gate
13 h 53 apart on the timetable
DL 514 leaves 13 h 53 after WN 3434 arrives on the timetable: more than half a day, so not a connection we count.