British Airways cabin crew will head to the House of Commons today to put forward their case for the long-running dispute and why a settlement has yet to be found.

As the strike reaches its 21st day, Unite said dozens of crew would head to Westminster in a bid to brief MPs on what they say is the “climate of fear at the airline”.

Crew are expected to wear red gags to symbolise their claims that some of their colleagues are being disciplined or dismissed for expressing concerns about BA’s management style, the union said. Unite says that 60 crew members have now been suspended and eight sacked in recent weeks. 

Unite said: “With trust in management at an all-time low, BA's insistence that those who took strike action must be punished with the loss of their staff travel, is preventing any progress on a deal.”

The protest will take place between 3pm to 3.30pm on Tuesday.

The last of the three five-day strikes by cabin crew is due to end on Wednesday but Unite has threatened to ballot members for further action unless the dispute is resolved.