AA 1164 then AA 2166 at Boston
Washington National → Boston → Chicago O'Hare
Timetable, Boston time
09:32AA 1164 from Washington National at the gate
10:20AA 2166 to Chicago O'Hare leaves the gate
48 min apart on the timetable
The last days
AA 1164 and AA 2166 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.