DL 168 then D8 3657 at Barcelona
New York JFK → Barcelona → Copenhagen
Timetable, Barcelona time
08:40DL 168 from New York JFK at the gatealso AF 3597, KL 6039
12:30D8 3657 to Copenhagen leaves the gate
3 h 50 apart on the timetable
The last days
DL 168 and D8 3657 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.