WN 757 then BA 218 at Denver
Cleveland → Denver → London
Timetable, Denver time
18:45WN 757 from Cleveland at the gate
17:01BA 218 to London leaves the gate
22 h 16 apart on the timetable, overnight
BA 218 leaves 22 h 16 after WN 757 arrives on the timetable: more than half a day, so not a connection we count.