LA 2992 then DL 1399 at Miami
Lima → Miami → Boston
Timetable, Miami time
07:10LA 2992 from Lima at the gate
11:37DL 1399 to Boston leaves the gate
4 h 27 apart on the timetable
The last days
LA 2992 and DL 1399 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.