CM 1132 then AA 597 at San Francisco
Eugene → San Francisco → Chicago O'Hare
Timetable, San Francisco time
18:16CM 1132 from Eugene at the gatealso UA 5709, LH 7645
17:22AA 597 to Chicago O'Hare leaves the gatealso QF 4712
23 h 06 apart on the timetable, overnight
AA 597 leaves 23 h 06 after CM 1132 arrives on the timetable: more than half a day, so not a connection we count.