AA 2253 then UA 552 at San Francisco
Chicago O'Hare → San Francisco → Redmond
Timetable, San Francisco time
16:22AA 2253 from Chicago O'Hare at the gatealso QF 4756
16:20UA 552 to Redmond leaves the gate
23 h 58 apart on the timetable, overnight
UA 552 leaves 23 h 58 after AA 2253 arrives on the timetable: more than half a day, so not a connection we count.