DL 514 then AA 3597 at Phoenix
Boston → Phoenix → Redmond
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
16:46AA 3597 to Redmond leaves the gate
18 h 53 apart on the timetable, overnight
AA 3597 leaves 18 h 53 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.