SN 397 then SN 3779 at Brussels
Freetown → Brussels → Tenerife South
Timetable, Brussels time
05:25SN 397 from Freetown at the gate
06:10SN 3779 to Tenerife South leaves the gate
45 min apart on the timetable
The last days
SN 397 and SN 3779 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.