UA 2375 then WN 4313 at Denver
Portland (Oregon) → Denver → Burbank
Timetable, Denver time
12:30UA 2375 from Portland (Oregon) at the gate
12:15WN 4313 to Burbank leaves the gate
23 h 45 apart on the timetable, overnight
WN 4313 leaves 23 h 45 after UA 2375 arrives on the timetable: more than half a day, so not a connection we count.