FR 6573 then U2 2231 at Manchester
Cologne → Manchester → Prague
Timetable, Manchester time
01:00FR 6573 from Cologne at the gate
07:25U2 2231 to Prague leaves the gate
6 h 25 apart on the timetable
The last days
FR 6573 and U2 2231 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.