WN 757 then UA 2240 at Denver
Cleveland → Denver → Los Angeles
Timetable, Denver time
18:45WN 757 from Cleveland at the gate
17:50UA 2240 to Los Angeles leaves the gate
23 h 05 apart on the timetable, overnight
UA 2240 leaves 23 h 05 after WN 757 arrives on the timetable: more than half a day, so not a connection we count.