AA 6451 then WN 1091 at Denver
Los Angeles → Denver → Fresno
Timetable, Denver time
11:21AA 6451 from Los Angeles at the gate
09:00WN 1091 to Fresno leaves the gate
21 h 39 apart on the timetable, overnight
WN 1091 leaves 21 h 39 after AA 6451 arrives on the timetable: more than half a day, so not a connection we count.