The Harmonized Index of Consumer Prices category "Passenger Transport by Air (07.3.3)" is a classification of services that includes transport of individuals and groups of persons and luggage by airplane and helicopter.
This category is a subcategory of the Transport (07) and of Transport Services (07.3) categories.
Information provided in the notes pertaining to HICP classifications can be found from the source at: http://ec.europa.eu/eurostat/ramon/nomenclatures/index.cfm?TargetUrl=ACT_OTH_CLS_DLD&StrNom=HICP_2000&StrFormat=HTML&StrLanguageCode=EN&IntKey=22470387.
Copyright, European Union, 1995-2014, http://epp.eurostat.ec.europa.eu/portal/page/portal/about_eurostat/policies/copyright_licence_policy.
Eurostat, Harmonized Index of Consumer Prices: Passenger Transport by Air for Spain© [CP0733ESM086NEST], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/CP0733ESM086NEST, February 12, 2016.