WTTC issued the warning as the EU launched its own digital Covid-19 certificate which is designed to reopen travel across the continent.
The organisation blamed the UK’s “controversial” traffic light system, use of quarantines, high cost of Covid tests and “confusing” travel rules and regulations for bringing the travel sector “almost to its knees”.
WTTC has already forecast that the country will lose £19.8 billion if international travel does not open up in July, with similar losses in August if there is no lifting of restrictions.
