UA 774 then DL 3704 at LAX
Denver (DEN) → Los Angeles → Aspen
Timetable, Los Angeles time
15:04UA 774 from Denver (DEN) at the gate
10:35DL 3704 to Aspen leaves the gate
19 h 31 apart on the timetable, overnight
DL 3704 leaves 19 h 31 after UA 774 arrives on the timetable: more than half a day, so not a connection we count.