CM 1431 then TK 80 at San Francisco
Redmond → San Francisco → Istanbul
Timetable, San Francisco time
21:19CM 1431 from Redmond at the gatealso UA 5534
18:35TK 80 to Istanbul leaves the gatealso 6E 4038
21 h 16 apart on the timetable, overnight
TK 80 leaves 21 h 16 after CM 1431 arrives on the timetable: more than half a day, so not a connection we count.