AA 2818 then DL 9979 at Boston
Miami → Boston → Minneapolis
Timetable, Boston time
23:58AA 2818 from Miami at the gate
09:00DL 9979 to Minneapolis leaves the gate
9 h 02 apart on the timetable, overnight
The last days
AA 2818 and DL 9979 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.