AA 9909 then WN 3628 at Denver
Los Angeles → Denver → Tucson
Timetable, Denver time
16:45AA 9909 from Los Angeles at the gate
15:45WN 3628 to Tucson leaves the gate
23 h apart on the timetable, overnight
WN 3628 leaves 23 h after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.