NH 8421 then TW 250 at Narita
Chicago → Tokyo → Seoul
Timetable, Tokyo time
18:38NH 8421 from Chicago at the gate
21:35TW 250 to Seoul leaves the gate
2 h 57 apart on the timetable
The last days
NH 8421 and TW 250 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.
Later flights to Seoul
No later flight to Seoul on the timetable.