UA 1936 then TK 9591 at San Francisco
Eugene → San Francisco → Las Vegas
Timetable, San Francisco time
21:05UA 1936 from Eugene at the gatealso OZ 6325, LH 7809
19:00TK 9591 to Las Vegas leaves the gate
21 h 55 apart on the timetable, overnight
TK 9591 leaves 21 h 55 after UA 1936 arrives on the timetable: more than half a day, so not a connection we count.