DL 1624 then CV 2 at O'Hare
Boston → Chicago → Indianapolis
Timetable, Chicago time
15:27DL 1624 from Boston at the gate
21:45CV 2 to Indianapolis leaves the gate
6 h 18 apart on the timetable
The last days
DL 1624 and CV 2 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.