MAG, backed by Ryanair, Tui, easyJet, Virgin Atlantic and publisher Clive Jacobs, sought a High Court verdict on the way changes to the system were made, often at short notice.
Their claims were thrown out, but MAG was given permission to seek a further judicial review.
Judges ruled transport secretary Grant Shapps had not acted unlawfully and had conducted a review “which meets the requirements” of the government’s International Travel Regulations.
They also threw out calls for Shapps to publish reasons for decisions announced on the 3 June 2021.
