AS 528 then AV 2354 at San Francisco
Seattle → San Francisco → Denver
Timetable, San Francisco time
11:15AS 528 from Seattle at the gatealso AA 9410
05:00AV 2354 to Denver leaves the gate
17 h 45 apart on the timetable, overnight
AV 2354 leaves 17 h 45 after AS 528 arrives on the timetable: more than half a day, so not a connection we count.