What information his Department holds on the effect of industrial action involving airlines on the number of passengers on flights operated by those airlines.

The Department does not routinely monitor or hold information on airline passenger loads. However, most publicly listed UK airlines, including British Airways, regularly publish traffic and capacity statistics.

Is the right hon. Lady aware of testimony from British Airways staff that British Airways has run commercially unviable flights in periods of industrial action, with low to zero numbers of passengers, to give the impression that it is unaffected by industrial action? Will you condemn any carrier for such environmentally unsustainable behaviour and investigate any report from BA staff?

I will neither condemn nor investigate, but the Minister might.

It is clear that this Government are determined to provide encouragement to airlines to fly greener planes and to switch to flying fuller planes. That is what is behind the proposals we will make on reforming air passenger duty, and it will help to address the concerns around so-called ghost flights.

Turning to the hon. Lady's specific example, that is primarily a matter for British Airways. I understand from the airline that some planes flew with low passenger loads, some were freight-only, and some had only crew on board, to ensure that the aeroplanes were in the right place to resume passenger operations once the dispute ended. That is a concern to us because of the environmental impact of empty flights. Unfortunately, that is another negative consequence of the industrial dispute and another reason why I urge the parties to get back round the table to ensure that it is resolved as soon as possible to prevent a recurrence.