IB 136 then IB 1401 at Madrid
Quito → Madrid → Valencia
Timetable, Madrid time
10:45IB 136 from Quito at the gate
11:30IB 1401 to Valencia leaves the gate
45 min apart on the timetable
The last days
IB 136 and IB 1401 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.