UA 1936 then UA 1924 at San Francisco
Eugene → San Francisco → St Louis
Timetable, San Francisco time
21:05UA 1936 from Eugene at the gatealso OZ 6325
16:25UA 1924 to St Louis leaves the gatealso EK 6319, OZ 6343, NZ 9708
19 h 20 apart on the timetable, overnight
UA 1924 leaves 19 h 20 after UA 1936 arrives on the timetable: more than half a day, so not a connection we count.