AF 2661 then UA 552 at San Francisco
Seattle → San Francisco → Redmond
Timetable, San Francisco time
17:05AF 2661 from Seattle at the gatealso KL 5503
16:40UA 552 to Redmond leaves the gate
23 h 35 apart on the timetable, overnight
UA 552 leaves 23 h 35 after AF 2661 arrives on the timetable: more than half a day, so not a connection we count.