AA 6487 then CV 278 at O'Hare
St Louis → Chicago → Luxembourg
Timetable, Chicago time
18:59AA 6487 from St Louis at the gate
23:00CV 278 to Luxembourg leaves the gate
4 h 01 apart on the timetable
The last days
AA 6487 and CV 278 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.