UA 1936 then AA 491 at San Francisco
Eugene → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
21:05UA 1936 from Eugene at the gatealso OZ 6325
17:01AA 491 to Dallas-Fort Worth leaves the gatealso QR 2259, QF 3120, BA 6540
19 h 56 apart on the timetable, overnight
AA 491 leaves 19 h 56 after UA 1936 arrives on the timetable: more than half a day, so not a connection we count.