I2 1752 then QS 1057 at Madrid
Seville → Madrid → Prague
Timetable, Madrid time
11:15I2 1752 from Seville at the gatealso IB 1752
13:55QS 1057 to Prague leaves the gatealso UX 3853
2 h 40 apart on the timetable
The last days
I2 1752 and QS 1057 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.