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Sources & methodology

Every figure on this site comes from one of 29 national aviation or statistics authorities. Together they cover 2,934 airports back to 1985. We do not alter source figures.

How a number gets here

  1. We fetch what the authority publishedthe original file or feed, kept as it arrived
  2. We map it to airports and periodsby ICAO and IATA code, never by name alone — three-letter codes collide
  3. We label what it coversall traffic, domestic only, international only, or observed rather than counted
  4. We pick one source per figurewhen two authorities report the same airport-month, the more complete one wins, and the page names it
  5. We never mix labelsa domestic-only series is never added to or ranked against a full-coverage one

Each source keeps its own rhythm: 0 publish daily, 22 monthly, 7 quarterly or yearly. We re-check each one on its own rhythm and republish as soon as new figures arrive.

Sources in use

29

US Bureau of Transportation Statistics — T-100 Air Carrier Statistics · Eurostat avia_par · EUROCONTROL PRU · CAAC — Civil Aviation Administration of China · OpenSky Network · Statistics Canada · ANAC — Brazilian National Civil Aviation Agency · ANAC Brazil VRA · Directorate General of Civil Aviation (DGCA), India · Statistics Canada · DGAC — Direction générale de l'Aviation civile (France) · MLIT — Ministry of Land, Infrastructure, Transport and Tourism (Japan) · AFAC — Agencia Federal de Aviación Civil (México) · Aerocivil — Aeronáutica Civil de Colombia · UK Civil Aviation Authority · BITRE — Australian Government (data.gov.au) · ANAC — Administración Nacional de Aviación Civil (Argentina) · CAAP — Civil Aviation Authority of the Philippines · Bureau of Infrastructure and Transport Research Economics (Australia) · Junta de Aeronáutica Civil (Chile) · DGAC — Dirección General de Aeronáutica Civil (Bolivia) · Junta de Aviación Civil (República Dominicana) · DINAC — Dirección Nacional de Aeronáutica Civil (Paraguay) · Central Bureau of Statistics Aruba · Centraal Bureau voor de Statistiek Curaçao · Hong Kong Civil Aviation Department · Airport Authority Hong Kong, via DATA.GOV.HK · Algemeen Bureau voor de Statistiek (Suriname) · DINACIA — Dirección Nacional de Aviación Civil e Infraestructura Aeronáutica (Uruguay)

Licence

Each source keeps its own terms. Where an authority requires attribution, we carry it.