EI 133 then AA 2247 at Boston
Dublin → Boston → Miami (MIA)
Timetable, Boston time
13:55EI 133 from Dublin at the gate
14:13AA 2247 to Miami (MIA) leaves the gate
18 min apart on the timetable
Boston’s board gives an arrival time for only about 59% of its flights, so many days show no gate time.
The last days
EI 133 and AA 2247 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.