It comes after BA and Virgin Atlantic announced last week they were also joining the legal challenge, which is calling for a judicial review over the new traffic light system’s “lack of transparency”.
Court papers officially filed on Thursday (17 June) argue the government’s reasons for their decisions on a country’s traffic light status are “undisclosed and the decision-making process lacks transparency in a fundamental way”.
Tui’s UK boss Andrew Flintham confirmed the tour operator was joining the action, in a speech at Abta’s Travel Matters.