IB 2251 then FR 4585 at Barcelona
Melilla → Barcelona → Porto
Timetable, Barcelona time
12:30IB 2251 from Melilla at the gatealso LL 3103
19:20FR 4585 to Porto leaves the gate
6 h 50 apart on the timetable
The last days
IB 2251 and FR 4585 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.