UA 1027 then DL 3704 at LAX
Seattle (SEA) → Los Angeles → Aspen
Timetable, Los Angeles time
15:05UA 1027 from Seattle (SEA) at the gate
10:35DL 3704 to Aspen leaves the gate
19 h 30 apart on the timetable, overnight
DL 3704 leaves 19 h 30 after UA 1027 arrives on the timetable: more than half a day, so not a connection we count.