The system at Terminal 2 is said to have failed on Friday (17 June), leading to a build-up of bags outside the airport. According to reports, the situation was rectified by Sunday evening (19 June).

However, according to The Independent, an estimated 15,000 passengers on 90 flights will be affected by the delays on Monday (20 June).

Cancellations identified by the paper include an Aegean service to Athens, British Airways’ services to Toulouse and Marseille, Virgin Atlantic’s New York and LA routes and an Aer Lingus flight to Dublin.

A Heathrow spokesperson reportedly said: "We apologise unreservedly for the disruption passengers have faced over the course of this weekend. The technical issues affecting baggage systems have led to us making the decision to request airlines operating in Terminals 2 and 3 to consolidate their schedules on Monday 20 June.

"This will enable us to minimise ongoing impact and we ask that all passengers check with their airlines for the latest information."