DL 9912 then DL 3710 at Salt Lake City
Colorado Springs → Salt Lake City → Santa Ana
Timetable, Salt Lake City time
09:10DL 9912 from Colorado Springs at the gate
17:18DL 3710 to Santa Ana leaves the gate
8 h 08 apart on the timetable
The last days
DL 9912 and DL 3710 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.