AA 1809 then WN 4417 at Boston
Charlotte → Boston → Nashville
Timetable, Boston time
12:35AA 1809 from Charlotte at the gate
13:05WN 4417 to Nashville leaves the gate
30 min apart on the timetable
The last days
AA 1809 and WN 4417 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.