The policy has been brought into the spotlight after a transgender woman sought advice ahead of her visit.
The airline is attempting to be more inclusive by banning gendered pronouns.
The dictionary has officially recognised the singular use of 'they' as a pronoun for people who identify as nonbinary.
Sam Smith has opened up about being non-binary, saying that he doesn’t identify with either male or female as he “floats between the two”.
Uniform policies have revealed that at least 40 secondary schools in England have already stopped girls from wearing skirts
The move ensures gender-neutral students can use facilities “they feel most comfortable with”.