AA 1985 then DL 5837 at Charlotte
Des Moines → Charlotte → Boston
Timetable, Charlotte time
10:30AA 1985 from Des Moines at the gate
18:28DL 5837 to Boston leaves the gate
7 h 58 apart on the timetable
The last days
AA 1985 and DL 5837 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.