DL 6770 then I2 1759 at Madrid
New York JFK → Madrid → Seville
Timetable, Madrid time
11:10DL 6770 from New York JFK at the gatealso RO 9429
14:30I2 1759 to Seville leaves the gatealso IB 1759
3 h 20 apart on the timetable
The last days
DL 6770 and I2 1759 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.