AA 2120 then AF 2673 at San Francisco
Dallas-Fort Worth → San Francisco → Salt Lake City
Timetable, San Francisco time
08:56AA 2120 from Dallas-Fort Worth at the gatealso IB 8018
17:04AF 2673 to Salt Lake City leaves the gatealso KL 6745
8 h 08 apart on the timetable
The last days
AA 2120 and AF 2673 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.