AA 549 then DL 5409 at Charlotte
Richmond → Charlotte → Boston
Timetable, Charlotte time
06:18AA 549 from Richmond at the gate
07:05DL 5409 to Boston leaves the gate
47 min apart on the timetable
The last days
AA 549 and DL 5409 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.