WN 209 then AA 6281 at Denver
St Louis → Denver → Los Angeles
Timetable, Denver time
18:50WN 209 from St Louis at the gate
18:46AA 6281 to Los Angeles leaves the gate
23 h 56 apart on the timetable, overnight
AA 6281 leaves 23 h 56 after WN 209 arrives on the timetable: more than half a day, so not a connection we count.