UA 1248 then BR 661 at O'Hare
San Francisco → Chicago → Taipei
Timetable, Chicago time
11:24UA 1248 from San Francisco at the gate
09:50BR 661 to Taipei leaves the gate
22 h 26 apart on the timetable, overnight
BR 661 leaves 22 h 26 after UA 1248 arrives on the timetable: more than half a day, so not a connection we count.