DL 1632 then DL 2502 at Salt Lake City
Denver → Salt Lake City → Houston
Timetable, Salt Lake City time
08:55DL 1632 from Denver at the gate
09:28DL 2502 to Houston leaves the gate
33 min apart on the timetable
The last days
DL 1632 and DL 2502 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.