UA 2835 then DL 2374 at Phoenix
Houston → Phoenix → Seattle
Timetable, Phoenix time
09:23UA 2835 from Houston at the gate
08:40DL 2374 to Seattle leaves the gate
23 h 17 apart on the timetable, overnight
DL 2374 leaves 23 h 17 after UA 2835 arrives on the timetable: more than half a day, so not a connection we count.