IB 306 then I2 1763 at Madrid
Monterrey → Madrid → Seville
Timetable, Madrid time
13:50IB 306 from Monterrey at the gatealso BA 7180
18:30I2 1763 to Seville leaves the gatealso IB 1763
4 h 40 apart on the timetable
The last days
IB 306 and I2 1763 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.