AV 2046 then UA 817 at San Francisco
Arcata → San Francisco → Mexico City
Timetable, San Francisco time
20:00AV 2046 from Arcata at the gate
13:14UA 817 to Mexico City leaves the gatealso AC 5402, NH 7368, NZ 9823
17 h 14 apart on the timetable, overnight
UA 817 leaves 17 h 14 after AV 2046 arrives on the timetable: more than half a day, so not a connection we count.