Hundreds of holidaymakers were in uproar at British airports over the weekend after they were told their trips were cancelled after an eight-hour wait. Police had to be called to settle disturbances at Manchester Airport, and passengers at Bristol were devastated as their holiday to Egypt was cancelled as they checked in.
People also reported 'shambolic' scenes of 'carnage' at Bristol airport, while easyJet has cancelled more than 200 flights to or from Gatwick between May 28 and June 6. Other airlines have cancelled dozens of flights and there have been delays reported at Heathrow, Gatwick, Edinburgh, Belfast and Birmingham airports.
There have also been pictures of long queues at Dublin Airport at 3.30am on Monday morning. Here are some of the main reasons behind the queues, delays and cancellations.