BA 791 then BA 267 at Heathrow
Göteborg → London → Portland (Oregon)
Timetable, London time
13:55BA 791 from Göteborg at the gate
13:35BA 267 to Portland (Oregon) leaves the gate
23 h 40 apart on the timetable, overnight
BA 267 leaves 23 h 40 after BA 791 arrives on the timetable: more than half a day, so not a connection we count.