AA 6422 then WN 2503 at LAX
Denver → Los Angeles → Houston Hobby
Timetable, Los Angeles time
13:57AA 6422 from Denver at the gate
11:55WN 2503 to Houston Hobby leaves the gate
21 h 58 apart on the timetable, overnight
WN 2503 leaves 21 h 58 after AA 6422 arrives on the timetable: more than half a day, so not a connection we count.