AF 2209 then Y4 2243 at San Francisco
Seattle → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
23:56AF 2209 from Seattle at the gatealso AM 4541
23:47Y4 2243 to Dallas-Fort Worth leaves the gatealso F9 2930
23 h 51 apart on the timetable, overnight
Y4 2243 leaves 23 h 51 after AF 2209 arrives on the timetable: more than half a day, so not a connection we count.