CM 1131 then UA 8219 at San Francisco
Eugene → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:05CM 1131 from Eugene at the gatealso AV 2270
18:10UA 8219 to Chicago O'Hare leaves the gate
21 h 05 apart on the timetable, overnight
UA 8219 leaves 21 h 05 after CM 1131 arrives on the timetable: more than half a day, so not a connection we count.