UA 796 then DL 9907 at Boston
San Francisco → Boston → New York JFK
Timetable, Boston time
06:06UA 796 from San Francisco at the gate
10:00DL 9907 to New York JFK leaves the gate
3 h 54 apart on the timetable
Today
From the airport’s board at 07:11 Boston time
06:56UA 796 reached the gate50 min late
10:00DL 9907 due to leave, no estimate yet
3 h 04 between the gates, on these times
The last days
UA 796 and DL 9907 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.