OO 6020 then K4 706 at O'Hare
Greensboro → Chicago → Seoul
Timetable, Chicago time
12:29OO 6020 from Greensboro at the gate
16:00K4 706 to Seoul leaves the gate
3 h 31 apart on the timetable
The last days
OO 6020 and K4 706 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.