CM 2339 then UA 817 at San Francisco
Salt Lake City → San Francisco → Mexico City
Timetable, San Francisco time
20:05CM 2339 from Salt Lake City at the gatealso AV 2359, AC 4239, UA 5457, VA 8448
13:14UA 817 to Mexico City leaves the gatealso AC 5402, NH 7368, NZ 9823
17 h 09 apart on the timetable, overnight
UA 817 leaves 17 h 09 after CM 2339 arrives on the timetable: more than half a day, so not a connection we count.