IB 1378 then BT 5146 at Madrid
Algiers → Madrid → Bilbao
Timetable, Madrid time
16:35IB 1378 from Algiers at the gatealso VY 5869
19:45BT 5146 to Bilbao leaves the gate
3 h 10 apart on the timetable
The last days
IB 1378 and BT 5146 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.