AA 9601 then GG 9719 at O'Hare
London → Chicago → Tokyo Narita
Timetable, Chicago time
21:30AA 9601 from London at the gate
02:30GG 9719 to Tokyo Narita leaves the gate
5 h apart on the timetable, overnight
The last days
AA 9601 and GG 9719 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.