IB 1066 then IB 43 at Madrid
Santander → Madrid → Seville
Timetable, Madrid time
07:40IB 1066 from Santander at the gatealso LA 5438, AY 5580, VY 5638, BA 7273, QR 8057
12:20IB 43 to Seville leaves the gate
4 h 40 apart on the timetable
The last days
IB 1066 and IB 43 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.