Blog
Carbon Market
What are the aviation emissions covered by the EU ETS?

What are the aviation emissions covered by the EU ETS?

The EU Emissions Trading System (EU ETS) includes aviation emissions, covering intra-EEA flights with potential expansion. In 2023, it captured 22% of aviation emissions, costing airlines €3 billion; emissions rose 10% due to post-pandemic recovery, while other sectors reduced emissions. Investing in green finance and carbon allowances related to the European carbon market may be impacted by these trends.

Aviation emissions were incorporated into the EU Emissions Trading System (EU ETS) in 2012, initially covering all flights within the EEA, but were limited to intra-EEA flights in 2016. In 2023, revised legislation aims to potentially expand the scope again to include all flights departing from the EEA in the future. It also sets the stage and the schedule for the phase out of free allowances for aviation. The EU ETS has reduced aviation emissions by over 17 million tonnes annually, with compliance rates of 99.5% . By 2024, all airlines operating within Europe, including non-European ones, must comply with EU ETS regulations, covering intra-European flights and those to/from Switzerland. In 2023, the EU ETS captured 22% of aviation emissions from European flights, totaling 164.5 megatonnes of CO₂. They have spent €3 billion to buy allowances, making carbon costs their third largest expense. Aviation emissions rose by 10% in 2023 compared to 2022, reflecting recovery from the COVID-19 pandemic, while other sectors saw significant emission reductions.

  • Were emissions from the aviation industry covered by the EU ETS before 2024?
  • What is the EU ETS scope on avion emissions in 2024?
  • A focus on the 2023 aviation emissions data from the EU ETS

Were emissions from the aviation industry covered by the EU ETS before 2024?

The introduction of emissions from aviation in the cap-and-trade system 

Aviation was incorporated into the EU Emissions Trading System in 2012, initially encompassing all flights departing from or arriving at an airport within the European Economic Area (EEA). However, due to substantial pressure from both the international community and the industry, the EU opted to temporarily limit the scope to cover only intra-EEA flights in 2016.

The reviews of aviation emissions scope of the EU ETS

Throughout 2021 and 2022, the EU institutions engaged in negotiations to reform the Emissions Trading System for aviation again - this resulted in the publication of a revised legislation in 2023. The news of the document were regarding the future potential expansion of the scope to again include all flights departing from the EEA, just like at the beginning in 2012. Also, the new legislation engaged in a gradual phase-out of free allowances allocated to the aviation sector.

What has been achieved thanks to the aviation emissions coverage by the EU ETS? 

As per the EU Commission, the system has reduced the carbon footprint of the aviation sector by over 17 million tonnes annually, with compliance rates of over 99.5% for aviation emissions. Currently, under the scope of the EU ETS are non-commercial operators with emissions of 1,000 tonnes of CO2 or more per year, and commercial operators with emissions of 10,000 tonnes of CO2 or more per year and who have conducted 243 flights or more in at least one of the three consecutive four-month periods of the year.

What is the EU ETS scope on avion emissions in 2024?

Who must monitor their aviation emissions to comply with the EU ETS? 

Under the EU ETS presently, all airlines operating within Europe, whether European or non-European, must monitor, report, and verify their emissions, and surrender allowances accordingly. 

What aviation emissions are under the scope of the EU ETS in 2024? 

At present, intra-European flights fall under the system, encompassing journeys to/from and within Norway, Liechtenstein, and Iceland. Flights from the EEA to Switzerland are also included.

A focus on the 2023 aviation emissions data from the EU ETS

What are the 2023 emissions from aviation in the EU? 

In 2023, the EU ETS captured 22% of aviation emissions from flights originating in Europe. This is due to the fact that the system's current coverage is limited to intra-EU flights as mentioned above. Flights departing from Europe emitted a total of 164.5 megatonnes of CO₂ in 2023. To match their EU ETS compliance obligations, airlines operating in Europe paid €3 billion in EUA allowances in 2023. The cost of carbon has become the third largest expense for major European airlines in 2023, ranking behind fuel and labor.

How do aviation emissions in 2023 compare to the other covered sectors? 

As a reminder, data reported by EU Member States as of April 2, 2024, indicated a 15.5% decrease in emissions in 2023 compared to 2022 levels. The primary driver behind this record decrease in EU ETS emissions has been the power sector, which saw a 24% decrease in emissions from electricity production compared to 2022. The industry sector also witnessed a reduction in emissions, approximately 7% lower than in 2022. On the other hand, aviation emissions increased by approximately 10% compared to 2022, attributed to the industry's ongoing recovery from the traffic decline during the COVID-19 pandemic.

Carbon emissions from aviation sector

Key Takeaways

  • Aviation emissions were incorporated into the EU Emissions Trading System (EU ETS) in 2012, initially covering all flights within the EEA, but were limited to intra-EEA flights in 2016.
  • In 2023, revised legislation aims to potentially expand the scope again to include all flights departing from the EEA in the future, while gradually phasing out free allowances for aviation.
  • The EU ETS has reduced aviation emissions by over 17 million tonnes annually, with compliance rates of 99.5%.
  • In 2023, the EU ETS captured 22% of aviation emissions from European flights, totaling 164.5 megatonnes of CO₂.
  • Airlines operating in Europe spent €3 billion on EUA allowances in 2023, making carbon costs their third largest expense.
  • Aviation emissions rose by 10% in 2023 compared to 2022, reflecting recovery from the COVID-19 pandemic, while other sectors saw significant emission reductions.

Share this article :

Learn more

Carbon Market

UKAs and EUAs: Why Hold Both When You're Already Invested in European Carbon

If you're already invested in European EUAs, do you need to bother with UK UKAs? Short answer: yes. Long answer: the two markets are correlated at around 80% over time, but that correlation hides distinct dynamics (political, industrial, calendar-based) that make UKAs both linked and differentiated from EUAs. That's precisely what makes the combination interesting: an EUA core for liquidity and depth, a UKA satellite for political catch-up and the associated risk premium. Here's why.

July 13, 2026

Carbon Market

What is the Climate Impact of a UKA? One Tonne of CO₂ Pulled Off the Market, Measured and Verifiable

Holding a UKA does something simple and radical: it takes one right-to-emit tonne of CO₂ off the UK market. Not an offset, not a voluntary credit, not a tree-planting promise. A regulated allowance, accounted for by the State, that exits the system the moment a non-compliance investor holds it. It's what we call an additional climate action: measurable, verifiable, legally framed. Here's how it works, and why this impact is one of the most robust in today's climate-finance landscape.

July 13, 2026

Carbon Market

The UKA-EUA Convergence Play: Anatomy of a Catch-Up in Motion

May 2025, London summit: Keir Starmer and Ursula von der Leyen formally state their intention to link the UK ETS to the European system. A new term has been circulating among carbon analysts ever since: the Convergence Play. The mechanic is simple: UKAs trade today around 20% below EUAs, a discount that has already partially closed since May 2025. The residual mechanical upside is around +20 to +25%. Here's how it works, why it's happening now, and what the Swiss-EU precedent teaches us.

July 13, 2026

What if your savings funded the climate transition?

Homaio is the first platform that allows you to invest in European (EUA) and British (UKA) carbon quotas.

Diversify: integrate climate assets into your portfolio.
Discover Homaio
Finally access investments that combine
financial
 and
environmental
 performance
The Guide to Climate Investing

Investing in the climate without sacrificing performance: an accessible guide to understanding it all.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Free guide
The guide to investing in UK carbon allowances

Understanding the UK carbon market and its potential for investors.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Free guide
Newsletter
The Homing Bird

5 minutes a week to become unbeatable on climate finance.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Simulate your return in 2 clicks

Discover the added value you could have achieved if you had invested in one of our assets 1, 5, or 10 years ago.

Chat with an expert

Need help or more information? Schedule an appointment with our expert, who will be delighted to assist you!