BA 4296 then IB 43 at Madrid
Dallas-Fort Worth → Madrid → Seville
Timetable, Madrid time
06:10BA 4296 from Dallas-Fort Worth at the gatealso AY 5644, EI 5872, QR 7234, AA 8631
12:20IB 43 to Seville leaves the gate
6 h 10 apart on the timetable
The last days
BA 4296 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.