CV 5723 then CV 5331 at O'Hare
Hanoi → Chicago → Luxembourg
Timetable, Chicago time
16:00CV 5723 from Hanoi at the gate
20:40CV 5331 to Luxembourg leaves the gate
4 h 40 apart on the timetable
The last days
CV 5723 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.