The airlines are; Air Berlin, Ryanair, Aer Lingus, Air Baltic, SkyEurope, Brussels Airlines as well as Internet travel agent Seat24 who are all guilty of using websites that give misleading information.
Henrik Oe, Danish Consumer Ombudsman, said the Internet booking sites contained incorrect information or misleading advertising and booking procedures.
Last year a European investigation indentified more than 200 websites offering online travel booking to see if their procedures and promises were misleading, and in May had confirmed that at least 80 of these still fell short of the standards.
European Consumer Commissioner Meglena Kuneva said:
“Europe’s consumers are being let down by the airline industry. There are serious and persistent problems with ticket sales throughout the airline industry as a whole,” she said.
“I hope operators have now realised the determination of the European Commission and national authorities to act on behalf of consumers where it is necessary,” Kuneva said.