UA 3375 then CV 5724 at O'Hare
St Louis → Chicago → Luxembourg
Timetable, Chicago time
08:50UA 3375 from St Louis at the gate
18:30CV 5724 to Luxembourg leaves the gate
9 h 40 apart on the timetable
The last days
UA 3375 and CV 5724 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.