UA 1254 then WN 3676 at Phoenix
Atlanta → Phoenix → Portland (Oregon)
Timetable, Phoenix time
18:22UA 1254 from Atlanta at the gate
16:00WN 3676 to Portland (Oregon) leaves the gate
21 h 38 apart on the timetable, overnight
WN 3676 leaves 21 h 38 after UA 1254 arrives on the timetable: more than half a day, so not a connection we count.