AA 2921 then CV 32 at O'Hare
Buffalo → Chicago → Luxembourg
Timetable, Chicago time
19:00AA 2921 from Buffalo at the gate
02:40CV 32 to Luxembourg leaves the gate
7 h 40 apart on the timetable, overnight
The last days
AA 2921 and CV 32 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.