AA 6451 then WN 500 at Denver
Los Angeles → Denver → Kansas City
Timetable, Denver time
11:21AA 6451 from Los Angeles at the gate
07:30WN 500 to Kansas City leaves the gate
20 h 09 apart on the timetable, overnight
WN 500 leaves 20 h 09 after AA 6451 arrives on the timetable: more than half a day, so not a connection we count.