DL 1377 then 1I 898 at Salt Lake City
Tampa → Salt Lake City → Las Vegas
Timetable, Salt Lake City time
10:00DL 1377 from Tampa at the gate
16:391I 898 to Las Vegas leaves the gate
6 h 39 apart on the timetable
The last days
DL 1377 and 1I 898 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.