Regulation 261/2004 provides for compensation for air passengers in the case of cancelled or delayed flights, the amount of the compensation to be determined by reference to the length of the delay and the distance to be travelled. In C-559/16 Bossen and Others v Brussels Airlines SA/NV the CJEU found that for the purposes of the calculation of the distance travelled it is the distance between the air passenger’s initial place of departure and ultimate destination that is relevant, and that the location of any connecting flights should be ignored for the purposes of this calculation. See the full judgement here: Bossen and Others v Brussels Airlines