AF 2209 then CZ 1639 at San Francisco
Seattle → San Francisco → Miami
Timetable, San Francisco time
23:56AF 2209 from Seattle at the gatealso AM 4541
23:47CZ 1639 to Miami leaves the gatealso AA 1844, PR 3934, QF 4121, G3 6252, IB 8568
23 h 51 apart on the timetable, overnight
CZ 1639 leaves 23 h 51 after AF 2209 arrives on the timetable: more than half a day, so not a connection we count.