AA 9909 then UA 4693 at Denver
Los Angeles → Denver → Colorado Springs
Timetable, Denver time
16:45AA 9909 from Los Angeles at the gate
16:40UA 4693 to Colorado Springs leaves the gate
23 h 55 apart on the timetable, overnight
UA 4693 leaves 23 h 55 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.