FR 2512 then DY 3659 at Barcelona
Cologne → Barcelona → Copenhagen
Timetable, Barcelona time
08:30FR 2512 from Cologne at the gate
14:45DY 3659 to Copenhagen leaves the gate
6 h 15 apart on the timetable
The last days
FR 2512 and DY 3659 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.