The brand now offers 997 hotels with the label, which highlights accommodations which have been independently certified in line with Global Sustainable Tourism Council (GSTC) criteria.
Richard Sofer, commercial director at Tui, said: "We know making sustainable choices is becoming more and more important to our customers and we launched our Green & Fair label to make it easy for them to see which hotels offer the best sustainable options.
"We’re delighted so many more of our hotel partners have now been certified as meeting the robust GSTC criteria and are proud to label them Green & Fair."
