AV 2104 then Y4 2410 at San Francisco
San Luis Obispo → San Francisco → Denver
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
12:20Y4 2410 to Denver leaves the gatealso F9 3436
16 h 24 apart on the timetable, overnight
Y4 2410 leaves 16 h 24 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.