# Regulation (EC) No 261/2004 of the European Parliament and of the Council of 11 February 2004 establishing common rules on compensation and assistance to passengers in the event of denied boarding and of cancellation or long delay of flights, and repealing Regulation (EEC) No 295/91 (Text with EEA relevance), Article 10: Upgrading and downgrading

Extent: E+W+S+N.I.

1. If an operating air carrier places a passenger in a class higher than that for which the ticket was purchased, it may not request any supplementary payment.
2. If an operating air carrier places a passenger in a class lower than that for which the ticket was purchased, it shall within seven days, by the means provided for in Article 7(3), reimburse
(a) 30 % of the price of the ticket for all flights of 1500 kilometres or less, or
(b) 50 % of the price of the ticket for all ... flights between 1500 and 3500 kilometres, or
(c) 75 % of the price of the ticket for all flights not falling under (a) or (b) ....

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Source: https://www.legislation.gov.uk/eur/2004/261/article/10 (the official version)
Page: https://openlegislation.uk/eu-regulation-2004-261/article-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.