AA 1253 then CI 5345 at San Francisco
Chicago O'Hare → San Francisco → Taipei
Timetable, San Francisco time
09:40AA 1253 from Chicago O'Hare at the gatealso QF 4697
01:50CI 5345 to Taipei leaves the gate
16 h 10 apart on the timetable, overnight
CI 5345 leaves 16 h 10 after AA 1253 arrives on the timetable: more than half a day, so not a connection we count.