JL 5202 then SL 395 at Narita
Seoul → Tokyo → Taipei
Timetable, Tokyo time
12:25JL 5202 from Seoul at the gate
17:25SL 395 to Taipei leaves the gate
5 h apart on the timetable
The last days
JL 5202 and SL 395 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.