22 Dec 2025 [### Leon ](https://www.leonsoftware.com/index.php?option=com_content&view=category&id=14) # Leon Software integrates with 4AIR to streamline sustainability and emissions reporting Leon Software has introduced a new integration with **4AIR**, an aviation-focused sustainability consultancy, enabling operators to automate emissions tracking, SAF (Sustainable Aviation Fuel) accounting, and regulatory reporting directly from their Leon environment. ![](https://www.leonsoftware.com/templates/yootheme/cache/16/4airart-1677ff19.jpeg) - [](https://x.com/intent/post?url=https%3A%2F%2Fwww.leonsoftware.com%2Fblog%2Fleon-software-integrates-with-4air-to-streamline-sustainability-and-emissions-reporting.html.md&text=) - [](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.leonsoftware.com%2Fblog%2Fleon-software-integrates-with-4air-to-streamline-sustainability-and-emissions-reporting.html.md) - [](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.leonsoftware.com%2Fblog%2Fleon-software-integrates-with-4air-to-streamline-sustainability-and-emissions-reporting.html.md) - [](https://api.whatsapp.com/send?text=https%3A%2F%2Fwww.leonsoftware.com%2Fblog%2Fleon-software-integrates-with-4air-to-streamline-sustainability-and-emissions-reporting.html.md) ### What the integration does With the 4AIR integration, flight and aircraft data from Leon can be sent automatically to 4AIR, where it is used to: - Calculate flight emissions based on actual operational data - Track and document SAF usage - Support compliance with schemes such as EU ETS, CORSIA, and upcoming sustainability regulations - Generate reports for internal ESG needs and customer communication This means no more manual exports, spreadsheets, or double data entry to keep sustainability data up to date. ### Benefits for Leon users For operators using Leon, the integration with 4AIR helps to: - **Reduce admin load** by automating data flows for sustainability and compliance - **Improve accuracy** of emissions calculations with consistent, high-quality operational data - **Embed sustainability into daily operations**, instead of treating it as a separate side process Owners, charter clients and passengers benefit from clearer, more transparent information about the environmental impact of their flights and any mitigation or SAF efforts. ### About 4AIR 4AIR is an aviation industry pioneer offering sustainability solutions that go far beyond simple carbon neutrality. Its innovative framework provides turnkey voluntary sustainability programs available by the hour, while its full-service compliance program helps operators put their environmental regulatory obligations on autopilot. From verified carbon offsets and removals to sustainable aviation fuel (SAF) programs, contrail mitigation, and emerging technologies, 4AIR delivers comprehensive support across all pillars of aviation sustainability. --- Not yet a member of Leon community? Contact our [Sales team](https://www.leonsoftware.com/javascript:/*%20This%20email%20address%20is%20being%20protected%20from%20spambots.*/) to find out more or jump straight into the [30-day free trial](https://www.leonsoftware.com/free-trial.html). 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