DL 2570 then AS 9720 at O'Hare
Boston → Chicago → Columbus (Ohio)
Timetable, Chicago time
09:55DL 2570 from Boston at the gate
16:40AS 9720 to Columbus (Ohio) leaves the gate
6 h 45 apart on the timetable
The last days
DL 2570 and AS 9720 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.