BA 812 then DY 2063 at Copenhagen
London Heathrow → Copenhagen → Riga
Timetable, Copenhagen time
14:55BA 812 from London Heathrow at the gate
11:55DY 2063 to Riga leaves the gate
21 h apart on the timetable, overnight
DY 2063 leaves 21 h after BA 812 arrives on the timetable: more than half a day, so not a connection we count.