UA 3905 then AA 1849 at San Francisco
Tokyo Haneda → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
16:33UA 3905 from Tokyo Haneda at the gate
11:20AA 1849 to Dallas-Fort Worth leaves the gatealso QF 4499, G3 6290, GF 6536, RJ 7530
18 h 47 apart on the timetable, overnight
AA 1849 leaves 18 h 47 after UA 3905 arrives on the timetable: more than half a day, so not a connection we count.