WN 4626 then DL 2148 at Denver
Nashville → Denver → Los Angeles
Timetable, Denver time
18:00WN 4626 from Nashville at the gate
12:52DL 2148 to Los Angeles leaves the gate
18 h 52 apart on the timetable, overnight
DL 2148 leaves 18 h 52 after WN 4626 arrives on the timetable: more than half a day, so not a connection we count.