EU to Extend Aviation Emissions Trading System to Some Flights Beyond Europe by 2029

The European Commission has announced a proposal to expand the scope of its Emissions Trading System (ETS) for aviation by including flights departing to third countries within a 5,000-kilometer radius of the EU’s geographic center. This move, set to take effect in 2029, represents a significant extension beyond the current restriction to intra-European Economic Area (EEA) flights. Notably, transatlantic flights are excluded from this expansion, focusing the ETS on routes more susceptible to carbon leakage and emissions inefficiencies.

This policy adjustment comes after an extensive review of the global carbon offsetting scheme for international aviation, known as CORSIA, concluded that CORSIA has yet to deliver sufficiently ambitious reductions. As a response, the Commission seeks to fortify its own ETS framework, applying it to flights departing any EEA airport to destinations no more than 5,000 kilometers away from the largest aerodrome in the geographical center of the Union. This distance roughly amounts to half the maximum range covered by flights from central Europe, intentionally excluding much longer flights such as those crossing the Atlantic.

The expansion marks a reversal of the 2013 decision to limit ETS coverage following the international agreement on CORSIA at ICAO. At that time, the EU scaled back the scheme from all flights to only intra-EEA journeys to avoid overlap with global measures. However, ongoing assessments revealed that CORSIA’s implementation has not yet matched expectations. Consequently, by extending ETS coverage to nearby third-country flights, the Commission aims to more effectively price carbon emissions and drive aviation decarbonization efforts within its influence.

According to Commission documents, the revised ETS scope is designed to prevent so-called hub leakage, where passengers might switch to routes exempt from carbon costs. This targeted approach restricts ETS to routes most vulnerable to such displacement. The regulatory change is scheduled to start in 2029, which offers a two-year delay beyond the termination of the current ‘stop the clock’ arrangement limiting ETS’s application to third countries.

Moreover, the Commission intends to periodically review the interaction between its ETS expansion and CORSIA’s effectiveness. A comprehensive evaluation in 2032 will determine if the global scheme meets its goals. Should CORSIA prove robust and efficient by then, the EU plans to scale back ETS coverage to flights within the EEA and select nearby territories like the UK, Switzerland, and Gibraltar. If not, the option to extend ETS to cover all departing flights remains on the table.

The proposed amendments also include funding enhancements for sustainable aviation fuels (SAF) and emerging technologies such as hydrogen and electric propulsion. By increasing emissions allowances in proportion to the expanded flight coverage, the EU aims to bolster investment in cleaner aviation sources and accelerate the sector’s transition towards net zero.

The reaction from environmental organizations reflected concern over the exclusion of longer-haul flights. Critics argue the 5,000-kilometer boundary lets the most polluting intercontinental routes, especially those over the Atlantic to the US and China, avoid carbon pricing obligations. There is a sentiment that this concession caters more to geopolitical pressures than climate science and economic imperatives. Nonetheless, the proposal signals a strategic yet cautious approach to expanding aviation carbon regulation in alignment with international frameworks.

This development arrives amid intensifying global scrutiny of aviation’s climate impacts and efforts to reconcile environmental ambitions with operational realities. The EU’s ETS extension will affect airline operations, emissions accounting, and potentially ticket pricing on an expanded set of routes. By integrating climate costs into a broader swath of regional flights, it intends to incentivize cleaner technologies and sustainable fuels across European-linked corridors.

Airlines operating flights within the expanded 5,000-kilometer radius should prepare for compliance requirements starting in 2029, including securing emissions allowances and adapting to new fuel mandates. The Commission’s phased approach with periodic evaluations underscores the dynamic nature of aviation climate policies and their dependence on global cooperation frameworks like CORSIA.