SQ 388 then UX 937 at Barcelona
Singapore → Barcelona → Madrid
Timetable, Barcelona time
06:40SQ 388 from Singapore at the gate
10:45UX 937 to Madrid leaves the gate
4 h 05 apart on the timetable
The last days
SQ 388 and UX 937 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.