British Airways cabin crew will strike on January 10 after a new pay offer was rejected.
Unite the Union confirmed that members on ‘mixed fleet’ contracts will walkout for 48-hours next week.
British Airways said it was “extremely disappointed” by the action and that all passengers will travel to their destinations.
"We are now focused on protecting our customers from this unnecessary and completely unjustified action,” said the airline.
The dispute affects staff that joined the airline from 2010 on ‘Mixed Fleet’ contracts - expected to work on both short and long haul flights – and feel they are not paid enough.
"British Airways is needlessly provoking strike action by refusing to extend the mandate of the strike ballot and allow meaningful talks to take place," Unite's national office Oliver Richardson said.
"Instead of listening to why its mixed fleet cabin crew rejected the offer negotiated at Acas, British Airways has sought instead to try and bully a workforce of young men and women who are trying to eke out a living on poverty pay."
However, he added that the union was "hopeful that a negotiated settlement which meets our members' aspirations can be achieved" and urged BA to "engage constructively".