TK 1933 then BA 267 at Heathrow
Istanbul → London → Portland (Oregon)
Timetable, London time
14:45TK 1933 from Istanbul at the gate
13:35BA 267 to Portland (Oregon) leaves the gate
22 h 50 apart on the timetable, overnight
BA 267 leaves 22 h 50 after TK 1933 arrives on the timetable: more than half a day, so not a connection we count.