Erling Haaland's shot deflected in off the unfortunate Daiki Hashioka into his own net. The English champions had to wait until after the hour mark before making the points safe when Mateo Kovacic smashed in Julian Alvarez's cross at the edge of the box. Haaland scored five then the sides met in the FA Cup in February.
The Norwegian had to settle for just one time this time when scored from the penalty spot for his 20th Premier League goal of the season. Ross Barkley netted a late consolation for Luton but they have just five games left to save their top-flight status. Jeremy Doku fired into the far corner after jinking through the Luton defence before Josko Gvardiol scored his second goal in a week after opening his City account in Madrid.