AA 517 then BA 1650 at San Francisco
Chicago O'Hare → San Francisco → New York JFK
Timetable, San Francisco time
11:31AA 517 from Chicago O'Hare at the gatealso QF 4687
15:53BA 1650 to New York JFK leaves the gate
4 h 22 apart on the timetable
The last days
AA 517 and BA 1650 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.