F9 3136 then CV 21M at O'Hare
Houston → Chicago → Luxembourg
Timetable, Chicago time
19:59F9 3136 from Houston at the gate
01:15CV 21M to Luxembourg leaves the gate
5 h 16 apart on the timetable, overnight
The last days
F9 3136 and CV 21M 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.