DL 5710 then UA 3013 at Boston
Washington National → Boston → San Francisco
Timetable, Boston time
07:38DL 5710 from Washington National at the gate
08:30UA 3013 to San Francisco leaves the gate
52 min apart on the timetable
The last days
DL 5710 and UA 3013 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.