UA 3901 then CV 21 at O'Hare
Minneapolis → Chicago → Luxembourg
Timetable, Chicago time
13:51UA 3901 from Minneapolis at the gate
16:50CV 21 to Luxembourg leaves the gate
2 h 59 apart on the timetable
The last days
UA 3901 and CV 21 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.