IB 0 then I2 1621 at Madrid
Santander → Madrid → Gran Canaria
Timetable, Madrid time
09:20IB 0 from Santander at the gate
17:35I2 1621 to Gran Canaria leaves the gatealso IB 1621
8 h 15 apart on the timetable
The last days
IB 0 and I2 1621 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.