DL 8929 then UA 8153 at San Francisco
Los Angeles → San Francisco → Washington
Timetable, San Francisco time
15:13DL 8929 from Los Angeles at the gate
22:53UA 8153 to Washington leaves the gate
7 h 40 apart on the timetable
The last days
DL 8929 and UA 8153 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.