WN 3687 then SY 8712 at Salt Lake City
San Diego → Salt Lake City → Los Angeles
Timetable, Salt Lake City time
10:55WN 3687 from San Diego at the gate
21:00SY 8712 to Los Angeles leaves the gate
10 h 05 apart on the timetable
The last days
WN 3687 and SY 8712 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.