UA 3572 then CV 5331 at O'Hare
Cleveland → Chicago → Luxembourg
Timetable, Chicago time
16:55UA 3572 from Cleveland at the gate
20:40CV 5331 to Luxembourg leaves the gate
3 h 45 apart on the timetable
The last days
UA 3572 and CV 5331 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.