GateConnections

F9 4567 then WN 3748 at Denver

St Louis → Denver → Burbank

Timetable, Denver time

21:30F9 4567 from St Louis at the gate

19:40WN 3748 to Burbank leaves the gate

22 h 10 apart on the timetable, overnight

WN 3748 leaves 22 h 10 after F9 4567 arrives on the timetable: more than half a day, so not a connection we count.