MU 8665 then AA 2642 at San Francisco
New York JFK → San Francisco → Chicago O'Hare
Timetable, San Francisco time
22:42MU 8665 from New York JFK at the gate
15:18AA 2642 to Chicago O'Hare leaves the gatealso BA 5612, GF 6849
16 h 36 apart on the timetable, overnight
AA 2642 leaves 16 h 36 after MU 8665 arrives on the timetable: more than half a day, so not a connection we count.