The union branch’s discussions with BA have in the past been led by Unite’s general secretary Len McCluskey.
The branch is now reportedly planning to conduct an online survey of its female members who work in the Mixed Fleet to decide whether further action will be taken.
Picture from British Airways of the new uniform which will Thursday January 16, 2003
Good look: The British Airways uniform includes a hat and skirt for females which the airline says looks professional and smart
According to the paper, union representatives had ‘tentatively raised’ the issue with BA management but were told it was the airline’s intention for women not to wear trousers.
All female BA cabin crew staff had the option to wear trousers while working between 2004, when a new uniform was designed by Julien McDonald, and 2010.
From 2010, women joining the newly-established Mixed Fleet have been required to wear skirts.
In 2004, the airline reportedly found that 70 per cent of female staff wanted to have a choice.
The BA uniform trousers are said to be made up of 80 per cent wool and 20 per cent polyester and can be a more practical option than skirts.
A British Airways spokesman said it had not received any complaints from Mixed Fleet staff since it was established in 2010.
'Our newest cabin crew fleet has always had its own uniform since its creation in 2010, with a number of unique aspects, such as female crew wearing a hat and skirt,' they said.
'This is the uniform offered to new members of cabin crew who are fully aware of this when they join the fleet.
'We believe our crew look professional and smart and we receive positive customer feedback on a regular basis.'