Primary sources · 5
- [1] Open Database License (ODbL) v1.0 — Governs the underlying airport, airline, and route data inherited from OpenFlights — Section 4 sets the attribution and share-alike obligations for any redistribution · Open Knowledge Foundation / Open Data Commons · Published 19 June 2009 https://opendatacommons.org/licenses/odbl/1-0/
- [2] Consumer Rights Act 2015 (UK) — Section 49 sets the implied terms about quality and fitness of digital content provided to consumers in the UK · UK Public General Acts · Effective 1 October 2015 https://www.legislation.gov.uk/ukpga/2015/15/contents
- [3] U.S. Digital Millennium Copyright Act, 17 U.S.C. §512 — Safe-harbour framework for online service providers handling user-claimed copyright infringement · U.S. Code via Cornell LII · Enacted 28 October 1998 https://www.law.cornell.edu/uscode/text/17/512
- [4] Google AdSense Publisher Policies — Sets the disclosure, content-restriction, and ad-placement obligations that bind us as an AdSense publisher · Google · Continuously updated https://support.google.com/adsense/answer/48182
- [5] U.S. Copyright Act §107 — Fair use — Statutory four-factor framework that governs whether a use of copyrighted material is permitted without permission · U.S. Code via Cornell LII · Codified 1976; amended 1992 https://www.law.cornell.edu/uscode/text/17/107
These terms cover what you can and cannot do with the AirMilesCalc website and the calculator output. They are written in plain English, reflect the open-data license that binds the underlying airport database, and disclaim the kinds of liability that no reasonable free-to-use reference tool can credibly accept.
License and ownership
AirMilesCalc has two layers of intellectual property. The website content (prose, methodology pages, learn articles, source-code blocks, design) is original work by the project maintainer, licensed for personal, educational, and non-commercial use. The underlying airport, airline, and route database is sourced from OpenFlights and carries forward the Open Database License v1.0 — that license does not change when you get the data via our pages.
| Element | Author / source | Your rights |
|---|---|---|
| Methodology + learn articles | AirMilesCalc maintainer | Personal / educational use; cite for academic work; ask before commercial reuse |
| Airport / airline / route data | OpenFlights contributors | Use under ODbL v1.0 — attribution + share-alike on derivative databases |
| Calculator output (specific numbers) | Computed from open data + open formulas | Use freely; no proprietary claim on a specific distance |
| Geodesic / CO₂ formulas | Public-domain math + UK government conversion factors | Use freely; cite when used in academic work |
| Site code (open components) | AirMilesCalc maintainer (some MIT-style permissive) | Inspect / inspect-and-borrow; consult the repository for specific files |
| OG image, logo, brand marks | AirMilesCalc maintainer | No use without permission |
What you may do
The site is designed to be useful, so the default disposition for ordinary use is permissive. Linking to AirMilesCalc from any external site is welcome without permission. Sharing screenshots of calculator output for personal, educational, or journalistic purposes is fine. Citing the methodology in research is fine and encouraged — please cite a /methodology subpage URL rather than a specific calculator query, because dynamic outputs may change as the database updates.
What you may not do
Five activities are out of scope no matter how small the scale: scraping or automated harvesting that interferes with normal site operation; reverse-engineering to claim AirMilesCalc's editorial output as your own; republishing OpenFlights data without ODbL-compliant attribution and share-alike on the derivative database; using the site for any illegal purpose under your local law; and circumventing or tampering with the Google AdSense advertising or the consent-management UI that funds the site.
Disclaimer of warranty and limitation of liability
AirMilesCalc is a decision-support reference tool, not flight planning, not regulated emissions disclosure, not booked-itinerary verification. Distances are geodesic great-circle paths; real-flown paths bend around airspace; emission factors are fleet-wide averages with named uncertainty ranges. No warranty of fitness for a particular purpose is offered or implied beyond what the UK Consumer Rights Act 2015 §49 mandates.
| Use case | What to use instead |
|---|---|
| Audited corporate carbon disclosure (SECR, CSRD, SEC climate) | DESNZ spreadsheet with your own activity data + GHG Protocol |
| Aviation flight-plan distance | A certified flight-management system |
| Booked-itinerary verification | The airline's confirmation system or an aggregator |
| Regulatory compliance reporting | The relevant national regulator's tool |
| Legal proceedings, insurance claims | Source documents from the operator(s) |
DMCA and copyright concerns
If you believe material on AirMilesCalc infringes a copyright you own, send a written notice under 17 U.S.C. §512(c)(3) to
info@airmilescalc.com
. A complete notice identifies the copyrighted work, the URL of the allegedly infringing material, your contact details, a good-faith statement that the use is unauthorised, and a statement under penalty of perjury that you are authorised to act on the owner's behalf.
- 1Identify the work
Provide enough detail that we can verify what is being claimed — title, publication, URL of the original, or registration number where available.
- 2Identify the AirMilesCalc URL
The specific page or asset URL on airmilescalc.com that you believe infringes. Multiple URLs go in one notice.
- 3Sign and send
Include your name, address, phone (optional), email, and the two statutory statements (good faith + authority). Email to the address above with “DMCA Notice” in the subject.
- 4Counter-notice route
If material you posted has been taken down and you believe the notice was mistaken, you may submit a counter-notice under 17 U.S.C. §512(g) at the same address.
Third-party services and ads
The site is funded by Google AdSense advertising. The Google AdSense Publisher Policies, the Google ads technologies policy, and any applicable consent regime (GDPR / UK GDPR / CCPA via the Funding Choices CMP) all bind your interaction with the ad layer. The non-ad parts of the site rely on three additional third-party services: Vercel for hosting, OpenStreetMap + CARTO for map tiles on country and airport pages, and the static OpenFlights dataset for reference data.
| Service | Role | Their terms |
|---|---|---|
| Google AdSense | Advertising + Funding Choices CMP | Google AdSense Publisher Policies |
| Vercel | Hosting, edge runtime, server logs | Vercel Terms of Service |
| OpenStreetMap + CARTO | Map tile imagery | OSM ODbL + CARTO terms |
| OpenFlights | Reference data (static) | Open Database License v1.0 |
Affiliate disclosure and independence
AirMilesCalc has zero affiliate relationships. We earn no commission from airlines, online travel agencies, booking aggregators, comparison sites, GDS providers, ancillary-service vendors, or any other aviation or travel service. External links on the site to airlines, airports, regulators, and reference sites (IATA, ICAO, FAA, Eurocontrol, ACI, Google Flights, Flightradar24, FlightAware, SeatGuru, and similar) are provided for editorial context and reader convenience only.
The only projected revenue source for AirMilesCalc is Google AdSense display advertising, which is not yet active — see the implementation status notice on /privacy for the current state. There is no sponsored content, no paid placements, no advertorial coverage, no “recommended by” sections funded by a third party, and no money changes hands for the editorial choices on methodology or learn pages.
| Relationship type | Status | Disclosure if changed |
|---|---|---|
| Affiliate or commission programmes | None | Would be disclosed on this page with effective date |
| Sponsored content or advertorial | None | Would be labelled “Sponsored” per FTC / ASA conventions |
| Paid editorial placements | None | Would breach the editorial process — would not be accepted |
| Display advertising (planned) | Google AdSense, planned post-approval | Disclosed at /privacy with implementation status notice |
| Donations or memberships | Not accepted | If introduced, donor list and amounts thresholds would be published |
| Data partnerships with airlines / aggregators | None | Would be disclosed on this page |
The full editorial standards that back this independence position are documented at /editorial-process.
Changes to these terms
These terms are not the kind of contract that needs constant tweaking, but they will evolve. Material changes (new restrictions, changed limitation-of-liability scope, modified license claims) will be preceded by 30 days' notice published on this page and referenced from the change log. Editorial fixes (typos, clarifications, link updates) can be made without notice.