AA 475 then UA 2226 at O'Hare
Los Angeles → Chicago → Buffalo
Timetable, Chicago time
06:56AA 475 from Los Angeles at the gate
14:18UA 2226 to Buffalo leaves the gate
7 h 22 apart on the timetable
The last days
AA 475 and UA 2226 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.