UA 345 then JX 11 at San Francisco
Las Vegas → San Francisco → Taipei
Timetable, San Francisco time
19:58UA 345 from Las Vegas at the gatealso AC 3110, NZ 9241
23:10JX 11 to Taipei leaves the gatealso AS 7219, AA 8365
3 h 12 apart on the timetable
The last days
UA 345 and JX 11 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.