Y4 2608 then AV 2036 at San Francisco
Denver → San Francisco → Seattle
Timetable, San Francisco time
00:20Y4 2608 from Denver at the gatealso F9 3439
16:17AV 2036 to Seattle leaves the gate
15 h 57 apart on the timetable
AV 2036 leaves 15 h 57 after Y4 2608 arrives on the timetable: more than half a day, so not a connection we count.