DL 1843 then OO 465 at O'Hare
Boston → Chicago → South Bend
Timetable, Chicago time
09:48DL 1843 from Boston at the gate
13:55OO 465 to South Bend leaves the gate
4 h 07 apart on the timetable
The last days
DL 1843 and OO 465 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.