CM 2469 then AM 669 at San Francisco
Arcata → San Francisco → Mexico City
Timetable, San Francisco time
20:00CM 2469 from Arcata at the gatealso UA 5305, NZ 9338
13:31AM 669 to Mexico City leaves the gatealso WS 6162, DL 7965
17 h 31 apart on the timetable, overnight
AM 669 leaves 17 h 31 after CM 2469 arrives on the timetable: more than half a day, so not a connection we count.