KD 214 then AA 802 at O'Hare
Anchorage → Chicago → Boston
Timetable, Chicago time
23:24KD 214 from Anchorage at the gate
08:30AA 802 to Boston leaves the gate
9 h 06 apart on the timetable, overnight
The last days
KD 214 and AA 802 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.