The employment lawyer on 5 live yesterday said that staff travel is agreed non contractual by the unions, as if it were contractual then it would be taxable.
I can't confirm that, bit above my level of knowledge, but if they were to have it agreed as contractual, and it became taxable, CC/BASSA would be even more unpopular in BA generally, as it would affect all staff. Plus Unite act for many BA departments, not just CC. I hope they know what they are doing!!