During the IATA Annual General Meeting in Rio de Janeiro early June, 9 airlines celebrated their signing ceremonies, namely Airlink, Royal Brunei Airlines, Gulf Air, TAAG-Linhas Aereas de Angola, EL AL Israel Airlines, Philippine Airlines and Riyadh Air. Warm welcome onboard!
Currently 118 airlines have joined the program:
Contributing airlines are recognized with the following logo:

From January 2027, the Swiss CO2 Act requires airlines and travel sellers operating to/from Switzerland to provide transparent, standardized CO₂ emissions information for passenger air travel.
Implementing transparency and comparability for travelers will not be easy for the industry, given multiple methodologies, fragmented data sources, and integration challenges that have historically limited consistency.
IATA CO2 Connect helps organizations address these challenges and makes it easier for airlines and travel sellers to comply with the new regulation. Built on real airline operational data and already embedded within key industry systems, IATA CO2 Connect enables aligned, scalable regulatory compliance across the travel ecosystem.
Read the full article here or contact us.
IATA and Chooose embarked on a collaboration in August 2025, to enable deliver IATA CO2 Connect’s trusted data—based on real operational inputs from over 70 airlines and aligned with IATA RP 1726 and ISO 14083 directly to their corporate customers. We asked Linda Kristoffersen, Vice President of SAF at Chooose, what trends she identifies in the sustainability landscape with evolving different customer and regulatory demands and how Chooose can support the industry in this space:
There are two core trends unfolding in parallel in this space. First, there’s a regulatory push around carbon visibility. There are a number of regulations focused on emission disclosures that are either coming online today or are planned to come online in the near term. The Swiss CO₂ Act as well as requirements from the EU, France, and the UK all present specific requirements on how, and where, and to whom airlines must make flight emission estimates visible.
And then second, there’s a customer-driven push around carbon visibility. Airlines’ corporate customers have an increasingly sophisticated set of requirements around the emissions data they want to access based on their own evolving reporting obligations and objectives.
Both of these trends mean that for an airline, calculation methodology decisions are more impactful and that having clear references and structured data sources is more important. Overall, these trends point towards a move away from simple industry averages and towards more granular data.
These changes essentially require airlines to be more diligent in their approaches to carbon visibility from the start - creating a foundation that can support evolving regulations and customer expectations rather than managing a series of one-off requests. Concrete, proactive steps generally include:
Chooose integrated IATA CO2 Connect into its software to support airlines in delivering granular emissions estimates across passenger touchpoints. IATA CO2 Connect utilizes operational data from over 100 airlines and is aligned with IATA RP1726 and ISO 14083. By leveraging this dataset within the Chooose platform, airlines can automate and streamline the display of these emissions estimates using a single framework across different customer segments and various touchpoints from booking flows to corporate travel platforms, to third-party applications. With the right foundation in place, airlines can meet increasing carbon visibility more effectively. Alaska Airlines, Cathay Pacific, Gulf Air, Air Europa, and Icelandair already use IATA CO2 Connect through Chooose.
Linda Kristoffersen, Vice President of SAF at Chooose

World Sustainability Symposium (WSS), 13 - 14 October in Brussels, Belgium
IATA's World Sustainability Symposium (WSS) brings together industry and governments to debate and discuss the key enablers for aviation’s successful decarbonization.
CO2 Data Workshop, 19 November 2026 in Geneva, Switzerland
In this flagship event around CO2 emissions data for aviation industry experts will discuss topics ranging from evolving regulations, interesting use cases, the importance of SAF, as well as needs for airlines, business travellers, corporates and cargo stakeholders. What to expect?
Participation is free. Register here.
We would love to hear from you and answer any questions you may have about the program. If you are interested in joining the program or want to learn more, please contact us.