AA 9781 then CV 12 at O'Hare
Philadelphia → Chicago → Luxembourg
Timetable, Chicago time
19:36AA 9781 from Philadelphia at the gate
21:56CV 12 to Luxembourg leaves the gate
2 h 20 apart on the timetable
The last days
AA 9781 and CV 12 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.