F9 1375 then DL 2374 at Phoenix
Denver → Phoenix → Seattle
Timetable, Phoenix time
09:04F9 1375 from Denver at the gate
09:00DL 2374 to Seattle leaves the gate
23 h 56 apart on the timetable, overnight
DL 2374 leaves 23 h 56 after F9 1375 arrives on the timetable: more than half a day, so not a connection we count.