BR 1027 then SL 396 at Taipei
San Francisco → Taipei → Osaka
Timetable, Taipei time
05:05BR 1027 from San Francisco at the gate
09:00SL 396 to Osaka leaves the gate
3 h 55 apart on the timetable
The last days
BR 1027 and SL 396 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.