3O 397 then FR 4545 at Barcelona
Rabat → Barcelona → Porto
Timetable, Barcelona time
08:003O 397 from Rabat at the gate
17:15FR 4545 to Porto leaves the gate
9 h 15 apart on the timetable
The last days
3O 397 and FR 4545 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.