AA 3115 then B6 1034 at San Francisco
Chicago O'Hare → San Francisco → Boston
Timetable, San Francisco time
11:29AA 3115 from Chicago O'Hare at the gatealso QF 4922
06:00B6 1034 to Boston leaves the gatealso EY 8006
18 h 31 apart on the timetable, overnight
B6 1034 leaves 18 h 31 after AA 3115 arrives on the timetable: more than half a day, so not a connection we count.