AA 9828 then DL 2646 at O'Hare
South Bend → Chicago → Boston
Timetable, Chicago time
17:25AA 9828 from South Bend at the gate
19:45DL 2646 to Boston leaves the gate
2 h 20 apart on the timetable
The last days
AA 9828 and DL 2646 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.