According to information published on the Porto.pt portal, the luggage storage company's study took into account the volume of passengers, as well as parking fees, shops and restaurants at the busiest European airports, as well as the classification given by AirHelp to European airports in terms of service quality.

The list is led by Adolfo Suárez Madrid-Barajas airport, which obtained 8.25 points out of 10 possible, while Vienna International Airport, in Austria, with 7.79 points, came in second place.

Third place was awarded to Josep Tarradellas Barcelona El-Prat Airport, with 7.68 points, while fourth place is occupied by Francisco Sá Carneiro Airport, in Porto, which obtained 7.67 points.