FR 3613 then BT 5146 at Madrid
Prague → Madrid → Bilbao
Timetable, Madrid time
12:40FR 3613 from Prague at the gate
19:45BT 5146 to Bilbao leaves the gate
7 h 05 apart on the timetable
The last days
FR 3613 and BT 5146 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.