W6 1367 then BA 809 at Copenhagen
Warsaw Chopin → Copenhagen → London Heathrow
Timetable, Copenhagen time
15:35W6 1367 from Warsaw Chopin at the gate
12:15BA 809 to London Heathrow leaves the gate
20 h 40 apart on the timetable, overnight
BA 809 leaves 20 h 40 after W6 1367 arrives on the timetable: more than half a day, so not a connection we count.