UA 1729 then AA 3430 at Phoenix
Denver → Phoenix → Eugene
Timetable, Phoenix time
21:37UA 1729 from Denver at the gate
18:00AA 3430 to Eugene leaves the gate
20 h 23 apart on the timetable, overnight
AA 3430 leaves 20 h 23 after UA 1729 arrives on the timetable: more than half a day, so not a connection we count.