AA 149 then AV 2354 at San Francisco
New York JFK → San Francisco → Denver
Timetable, San Francisco time
14:37AA 149 from New York JFK at the gatealso QF 4468, AT 5006, G3 6358, QR 7866
05:00AV 2354 to Denver leaves the gate
14 h 23 apart on the timetable, overnight
AV 2354 leaves 14 h 23 after AA 149 arrives on the timetable: more than half a day, so not a connection we count.