{"id":1204637,"name":"Air transport, freight (million ton-km)","unit":"million ton-km","createdAt":"2026-03-01T08:23:44.000Z","updatedAt":"2026-05-12T18:49:39.000Z","coverage":"","timespan":"1970-2023","datasetId":7396,"columnOrder":0,"shortName":"is_air_good_mt_k1","catalogPath":"grapher/worldbank_wdi/2026-02-27/wdi/wdi#is_air_good_mt_k1","descriptionFromProducer":"Air freight is the volume of freight, express, and diplomatic bags carried on each flight stage (operation of an aircraft from takeoff to its next landing), measured in metric tons times kilometers traveled.\n\n### Aggregation method:\nSum\n\n### Statistical concept and methodology:\nMethodology: The data is obtained from airports, airport operators, airport websites and/or civil aviation authorities. Data on passengers are reported annually by each State (for all its commercial air carriers, including scheduled and non-scheduled flights) via standardized forms sent to ICAO.\n\nEach passenger is counted once per flight number and not repeatedly on each individual stage of that flight, with a single exception that a passenger flying on both the international and domestic stages of the same flight should be counted as both a domestic and an international passenger.\n\nWhere some carriers do not report, ICAO may use historical reports or published flight-schedules to estimate their traffic.\nStatistical concept(s): A metric tonne of freight or mail carried one kilometre. Freight tonne-kilometres equal the sum of the products obtained by multiplying the number of tonnes of freight, express, diplomatic bags carried on each flight stage by the stage distance. For ICAO statistical purposes freight includes express and diplomatic bags but not passenger baggage. Mail tonne-kilometres are computed in the same way as freight tonne-kilometres.\n\n### Development relevance:\nAviation traffic data are essential for understanding the role of air transport in economic development, global connectivity, and social progress. These statistics, covering passenger volumes, freight volumes, and aircraft departures, provide a standardized measure of air transport activity across countries and regions and are closely linked to economic growth, trade integration, tourism development, and labor mobility.\n\nAviation traffic indicators also help assess the resilience and efficiency of transport systems, track the recovery from economic shocks or crises, and identify capacity constraints or infrastructure investment needs.\n\nFrom a development perspective, aviation statistics support evidence-based policy making in areas such as transport planning, regional integration, climate and emissions management, and inclusive access to services, making them a key input for monitoring progress toward sustainable and connected economies.\n\n### Limitations and exceptions:\nWhile ICAO aviation data provide a globally standardized and comprehensive view of air transport activity, several limitations affect their accuracy and comparability. Data quality depends on the completeness and consistency of country reporting, which can vary due to differences in national statistical capacity, regulatory environments, and adherence to ICAO definitions. Some countries may not report all relevant data, leading ICAO to estimate missing values using historical submissions and published schedules, which can introduce uncertainty. Changes in airline registration, mergers, or operational practices may also affect the attribution of traffic statistics. Additionally, the aggregation of scheduled and non-scheduled services, as well as the treatment of transit and transfer passengers, may differ across countries, impacting cross-country comparability.","type":"float","dataChecksum":"13612218954855993148","metadataChecksum":"-4258694191783460014","datasetName":"World Development Indicators","updatePeriodDays":365,"datasetVersion":"2026-02-27","nonRedistributable":false,"display":{"unit":"million ton-km"},"schemaVersion":2,"presentation":{},"dimensions":{"years":{"values":[{"id":1970},{"id":1971},{"id":1972},{"id":1973},{"id":1974},{"id":1975},{"id":1976},{"id":1977},{"id":1978},{"id":1979},{"id":1980},{"id":1981},{"id":1982},{"id":1983},{"id":1984},{"id":1985},{"id":1986},{"id":1987},{"id":1988},{"id":1989},{"id":1990},{"id":1991},{"id":1992},{"id":1993},{"id":1994},{"id":1995},{"id":1996},{"id":1997},{"id":1998},{"id":1999},{"id":2000},{"id":2010},{"id":2011},{"id":2012},{"id":2013},{"id":2014},{"id":2015},{"id":2016},{"id":2017},{"id":2018},{"id":2019},{"id":2020},{"id":2021},{"id":2022},{"id":2023},{"id":2001},{"id":2002},{"id":2003},{"id":2004},{"id":2005},{"id":2006},{"id":2007},{"id":2008},{"id":2009}]},"entities":{"values":[{"id":15,"name":"Afghanistan","code":"AFG"},{"id":16,"name":"Albania","code":"ALB"},{"id":17,"name":"Algeria","code":"DZA"},{"id":246,"name":"American Samoa","code":"ASM"},{"id":19,"name":"Angola","code":"AGO"},{"id":20,"name":"Antigua and 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It includes over 1,500 indicators covering more than 200 countries and territories, with data spanning several decades.WDI serves as a vital resource for policymakers, researchers, businesses, and analysts seeking to understand global trends and make data-driven decisions. The database covers a wide range of topics, including economic growth, education, health, poverty, trade, energy, infrastructure, governance, and environmental sustainability.The indicators are sourced from reputable national and international agencies, ensuring high-quality, consistent, and comparable data. Users can access the database through interactive online tools, API services, and downloadable datasets, facilitating detailed analysis and visualization.WDI is also used for tracking progress on the Sustainable Development Goals (SDGs) and other global development initiatives. By providing accessible and reliable statistics, it helps to inform policy discussions and strategies globally.Whether for academic research, policy planning, or economic analysis, the World Development Indicators database is an essential tool for understanding and addressing global development challenges.","producer":"International Civil Aviation Organization (ICAO), via World Bank","citationFull":"Civil Aviation Statistics of the World, International Civil Aviation Organization (ICAO), uri: https://data.icao.int/newdataplus/#:~:text=ICAO%20data%20is%20comprised%20of,information%20about%20commercial%20air%20carriers;\nICAO Staff estimates, International Civil Aviation Organization (ICAO), uri: https://data.icao.int/newdataplus/#:~:text=ICAO%20data%20is%20comprised%20of,information%20about%20commercial%20air%20carriers. Indicator IS.AIR.GOOD.MT.K1 (https://data.worldbank.org/indicator/IS.AIR.GOOD.MT.K1). World Development Indicators - World Bank (2026). Accessed on 2026-02-27.","versionProducer":"125","urlMain":"https://data.worldbank.org/indicator/IS.AIR.GOOD.MT.K1","urlDownload":"https://databankfiles.worldbank.org/public/ddpext_download/WDI_CSV.zip","dateAccessed":"2026-02-27","datePublished":"2026-01-28","license":{"url":"https://datacatalog.worldbank.org/search/dataset/0037712/World-Development-Indicators","name":"CC BY 4.0"}}]}