KE 91 then AA 4760 at Boston
Seoul → Boston → Cincinnati
Timetable, Boston time
08:50KE 91 from Seoul at the gate
09:35AA 4760 to Cincinnati leaves the gate
45 min apart on the timetable
The last days
KE 91 and AA 4760 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.