Sources and licences
Every number on this site comes from one of these, with the period shown next to it.
| What | Source |
|---|---|
| Airports: codes, names, positions, elevation, runways | OurAirports |
| Names in other languages, the city an airport serves | Wikidata |
| Passengers per airport where no statistics office below has the airport or its figure lacks months (latest full year), opening year, operator | Wikidata (P3872, P1619 / P571, P137) |
| Time zone of each airport | timezone-boundary-builder (via geo-tz), offsets from the IANA tz database |
| Routes touching the US: airlines, flights, seats, passengers, aircraft, block and air times, freight | U.S. DOT, Bureau of Transportation Statistics — T-100 Segment (all carriers) |
| Punctuality of US domestic flights | BTS — Reporting Carrier On-Time Performance |
| Average fares paid on US domestic airport pairs (history, not prices) | U.S. DOT — Consumer Airfare Report, Table 1a (airport pairs) and Table 6 (city pairs, used where each city has one airport) |
| Routes reported by European airports: passengers, seats, flights by month | Eurostat — avia_par_* (air passenger transport between main airports and partner airports) |
| Passengers per European airport, by year and by month | Eurostat — avia_paoa |
| Consumer prices for flights, per European country (36 countries): moving 12-month average and annual rate of change | Eurostat — HICP, prc_hicp_minr (ECOICOP ver. 2, 07.3.3 passenger transport by air) |
| Passengers per Canadian airport | Adapted from Statistics Canada, Air passenger traffic at Canadian airports, annual (table 23-10-0253-01) |
| Passengers per Australian airport (scheduled flights, in and out): the 20 busiest by calendar year and month, the others by the year to June | BITRE (Australia) — Airport traffic data (data.gov.au) |
| Passengers per Korean airport, Incheon included (arriving and departing, scheduled and charter) | Korea Airports Corporation — 공항별 여객실적 (data.go.kr 15002610) |
| Passengers per Japanese airport by calendar year (domestic and international, transit included); the totals per airport are compiled by us from the table | 出典：空港管理状況調書（国土交通省航空局） — MLIT Civil Aviation Bureau, airport management survey |
| Routes in, out of and within Brazil that BTS and Eurostat do not have: passengers, seats, flights, airlines by month; passengers per Brazilian airport | ANAC (Brazil) — Dados Estatísticos do Transporte Aéreo |
| Fares sold on Brazilian domestic routes: the seat-weighted average of every fare sold to the public, by month of sale (not travel), one way, before airport fees; no miles or corporate fares (history, not prices) | ANAC (Brazil) — Tarifas Aéreas Domésticas |
| Routes in, out of and within Chile that BTS and Eurostat do not have: passengers and airlines by month (scheduled airlines; no flights or seats); passengers per Chilean airport | JAC (Junta de Aeronáutica Civil, Chile) — Tráfico Aéreo (datos.gob.cl) |
| Routes from Incheon (ICN) that BTS and Eurostat do not have: passengers, flights, airlines by month (scheduled passenger flights). Published every half-year; the period grows to 12 months as releases are kept | Incheon International Airport Corporation — 항공사별 노선별 운송실적 (data.go.kr 15062056) |
| Routes in, out of and within Australia that BTS and Eurostat do not have: passengers by month (domestic: the busiest city pairs, with flights and seats; international: every city pair, passengers only). BITRE reports cities, matched to an airport only where the city has one with flights there | BITRE (Australia) — Domestic airlines top routes; International airline activity, city pairs (data.gov.au) |
| Routes in, out of and within India that BTS and Eurostat do not have: passengers (domestic by month; international by quarter, Table 4), provisional. DGCA reports cities, matched to an airport only where the name means one | DGCA (India) — city-pair traffic, scheduled domestic and international services |
| English airline names where a source gives a code only (Incheon) | Wikidata (P229), airlines without a dissolution date |
| CO2 per passenger-km | UK Department for Energy Security and Net Zero — GHG conversion factors 2026 |
| World map | Natural Earth, 1:110m land |
| EU261 / UK261 rules | Regulation (EC) 261/2004, Regulation (EU) 2026/2202, UK retained version |
How the numbers are worked out
- Distance is measured on the WGS-84 ellipsoid with GeographicLib, between the airports' reference points. The EU261 band uses the great circle on a 6,371 km sphere, the method the regulation names; the two differ by up to about 0.5%.
- Flight time, where US data has the route, is the average ramp-to-ramp (gate to gate) time of the scheduled flights in each direction. Elsewhere it is an estimate: 48 minutes plus the distance at 847 km/h, fitted to 8,609,021 US flights (2025-08…2026-07), rounded to 5 minutes.
- Passengers, seats and flights count both directions over the latest twelve months (US data) or the latest calendar year (Eurostat). A route touching both the US and Europe shows the US figures and mentions Eurostat's. Eurostat names no airlines, and each European route is counted once, from the airport whose code comes first.
- Passengers per airport come from the statistics office of the airport's country where one publishes them, else from Wikidata; each figure names its source and year. The offices count a little differently: BTS, ANAC and JAC scheduled flights only, Japan's MLIT transit passengers too, Australia's BITRE its smaller airports by the year to June. Where an office's figure is less than half of Wikidata's for the same or a later year, months are missing at the source (Eurostat's 2024 figure for Forlì has February only), and Wikidata's is shown.
- CO2 is the DESNZ factor for an economy seat times the great-circle distance: under 500 km the domestic factor (0.22928 kg/km), up to 3,700 km short-haul (0.12576), beyond long-haul (0.11704), including radiative forcing; without it 0.13552 / 0.07435 / 0.06926.
- Time differences compare the UTC offsets of both airports in mid-January and mid-July, so daylight saving shows.
Required notices
Source: Eurostat (avia_par_*, avia_paoa), extracted 2026-10-14. Eurostat has no responsibility for the aggregation and presentation on this site.
Contains public sector information licensed under the Open Government Licence v3.0 (UK DESNZ conversion factors).
Time zone boundaries: timezone-boundary-builder, © its contributors, Open Database License (ODbL) 1.0.
US data: U.S. Department of Transportation, Bureau of Transportation Statistics. No endorsement implied.
Not used, on purpose: UK CAA route tables and OpenSky flight lists (their terms do not allow republishing), OpenFlights (old and share-alike), Wikipedia tables, IATA's paid databases, and airline logos.