DL 8784 then DL 1586 at Salt Lake City
Los Angeles → Salt Lake City → Denver
Timetable, Salt Lake City time
17:54DL 8784 from Los Angeles at the gate
18:59DL 1586 to Denver leaves the gate
1 h 05 apart on the timetable
The last days
DL 8784 and DL 1586 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.