EU Could Extend Emissions Trading System to All Departing Flights

EU plans to charge carbon fees on all departing flights

The European Union is considering whether to extend its emissions trading system to cover every flight leaving European airports. Currently, only flights within Europe face carbon charges. The change could happen as soon as 2027.

Airlines would need to buy carbon allowances for all outbound journeys, not just those between European cities. The scheme would raise up to €12.7 billion each year based on current market conditions. That figure could reach €17 billion annually by 2030.

The proposal has triggered sharp opposition from airlines and international aviation bodies. However, environmental groups argue the expansion is necessary to address climate commitments. UK businesses that ship goods by air or travel frequently to non-European destinations need to understand what this means for operating costs.

The European Commission will assess the global carbon offsetting scheme in 2026. If it judges that system inadequate, Brussels will likely propose extending carbon fees to all departing flights. The decision affects every company that relies on air freight or international business travel from European hubs.

Current carbon charges apply only to European routes

Since 2012, the EU ETS has required airlines to buy carbon allowances for flights within the European Economic Area. Routes to the UK and Switzerland are also covered. Flights leaving Europe for destinations elsewhere face no carbon charge under EU rules.

This geographical restriction was deliberate. Brussels agreed to limit the scheme’s scope to support CORSIA, the United Nations global carbon offsetting system for aviation. The restriction was called “stop the clock” because it paused the application of carbon fees to intercontinental routes.

The current arrangement was extended in 2023 and runs until the start of 2027. After that date, flights from European airports to countries that have not implemented CORSIA will automatically face carbon charges. Most major aviation markets have signed up to CORSIA, but gaps remain.

The EU is now questioning whether CORSIA imposes a meaningful carbon price. Officials will review the global scheme in 2026. If they conclude it falls short of Paris Agreement commitments, the Commission can propose legislation to extend carbon fees to all departing flights regardless of destination.

This matters because the geographical scope determines both the environmental impact and the cost to airlines. Expanding coverage from European routes only to all departing flights would more than triple the number of emissions included in the system.

Extending the scheme would cover 80 million more tonnes of emissions

The current EU ETS for aviation covers approximately 64 million tonnes of CO₂ emissions each year. Extending the system to all departing flights would add another 80 million tonnes. That represents a significant increase in the scheme’s environmental reach.

Revenue from selling carbon allowances would increase dramatically. Under 2025 market conditions, the expanded scheme could generate €12.7 billion annually. By 2030, as air travel grows and free allowances are removed, revenues could exceed €17 billion each year.

These figures assume carbon prices remain around current levels. The EU carbon market has seen prices fluctuate between €60 and €90 per tonne in recent years. Higher prices would increase revenues further. Lower prices would reduce them.

The additional 80 million tonnes of coverage matters for several reasons. First, it brings more of aviation’s climate impact under regulatory control. Second, it generates substantial funds that could support decarbonisation projects. Third, it creates a stronger price signal for airlines to reduce emissions.

For comparison, earlier estimates suggested the expansion might raise around $10 billion. Those calculations likely used lower carbon prices or assumed partial scope extension. Current market data indicates the true figure sits closer to $14 billion, equivalent to approximately €12.7 billion.

The environmental benefit depends on how airlines respond. They might reduce flight frequencies, invest in more efficient aircraft, or increase use of sustainable aviation fuels. Alternatively, they could simply pass costs to customers through higher fares.

Airlines warn expansion will increase business travel and freight costs

Airline executives have voiced strong opposition to the proposed expansion. They argue that extending carbon fees to all departing flights will raise ticket prices for passengers and increase costs for businesses that rely on air freight. These warnings matter for UK companies that operate across European markets.

The additional cost per flight depends on distance and aircraft type. Long-haul flights to Asia or the Americas would face higher charges than short-haul European routes because they burn more fuel and produce more emissions. Business class and first class seats have a higher carbon footprint per passenger than economy seats.

For a typical long-haul flight from London to Singapore via a European hub, the carbon cost could add between €50 and €150 to the ticket price. Cargo flights face similar charges based on weight and distance. These costs accumulate quickly for businesses with frequent international operations.

The International Air Transport Association supports the global CORSIA system instead of regional expansion. IATA argues that fragmenting carbon rules between different regions creates complexity and administrative burden for airlines operating international networks. They want one global system rather than multiple regional schemes.

The International Civil Aviation Organization, the UN body responsible for aviation standards, sent a letter to the European Commission in May 2024. ICAO urged Brussels not to expand the ETS beyond European routes. The organisation warned that doing so could undermine international cooperation on aviation emissions.

Environmental groups take the opposite view. Transport & Environment, a Brussels-based campaign organisation, has called for the EU to extend carbon charges to all departing flights by 2027. They argue CORSIA imposes too weak a carbon price to drive meaningful emissions reductions.

The tension reflects a broader debate about whether climate action should be global or regional. Airlines prefer global rules that apply uniformly. Environmental advocates argue Europe should move faster than the slowest international consensus allows.

UK businesses need to consider both positions. A fragmented system creates compliance complexity. However, a weak global system may fail to address climate risks that could disrupt supply chains and operations in the longer term.

What UK businesses need to know about the proposed changes

• The EU will assess the CORSIA global offsetting scheme in 2026 and decide whether to extend carbon charges to all flights leaving European airports.
• If extended, the scheme would add €12.7 billion in annual costs for airlines under current market conditions, rising to €17 billion by 2030.
• The expansion would cover an additional 80 million tonnes of CO₂ emissions from flights departing Europe to non-European destinations.
• Airlines warn the changes will increase ticket prices and air freight costs, affecting businesses that rely on international travel and logistics.
• The current geographical restriction on carbon charges expires at the start of 2027, after which flights to non-CORSIA countries will automatically face fees.
• ICAO and IATA oppose regional expansion and support the global CORSIA system to avoid regulatory fragmentation across international routes.
• Environmental groups argue CORSIA imposes insufficient carbon pricing and advocate for the EU to extend charges to all departing flights regardless of destination.

How this affects procurement and supply chain decisions

Businesses that import goods by air from outside Europe may face higher logistics costs if the scheme expands. Air freight rates could increase to reflect carbon charges on outbound flights from European distribution hubs. Companies should review their supply chain arrangements now.

The impact depends on where goods originate and how they move through European logistics networks. Products flown from Asia to European warehouses, then redistributed by air to UK customers, could face multiple carbon charges under the expanded system. This creates an incentive to consolidate shipments or switch to sea freight where speed allows.

Similarly, businesses that require frequent international travel should factor potential cost increases into their budgets. Sales teams, consultants, and executives who travel regularly from European bases to non-European markets will see higher ticket prices. Video conferencing may become more attractive for routine meetings.

Public sector suppliers should pay particular attention. The UK government has made net zero commitments central to procurement policy. Supply chain emissions increasingly feature in tender evaluation criteria. Demonstrating lower carbon logistics may become a competitive advantage when bidding for contracts.

The expansion also affects companies with European subsidiaries or operations. Businesses that fly staff between UK and European offices, then onward to global destinations, will face carbon costs on those connecting flights. Restructuring travel patterns to use direct routes from the UK rather than European hubs could reduce exposure.

There is a strategic question about timing. If the expansion happens in 2027, businesses have limited time to adjust logistics networks and travel policies. Waiting for certainty before acting may leave insufficient time to renegotiate freight contracts or restructure operations.

Furthermore, the revenue generated from carbon charges could fund support for decarbonisation programmes including sustainable aviation fuel development. Businesses that invest early in lower-carbon logistics may benefit from incentives or avoid future cost increases as regulations tighten further.

The commercial calculus depends on your sector and operating model. However, the direction of travel is clear. Carbon costs for aviation will increase, whether through expanded EU rules or eventually through CORSIA. Businesses that prepare now will adapt more smoothly than those waiting for regulatory certainty.

The 2026 assessment determines what happens next

The European Commission’s review of CORSIA in 2026 represents the critical decision point. Officials will evaluate whether the global scheme imposes a carbon price sufficient to meet Paris Agreement goals. Their conclusion will determine whether the EU extends its trading system to all departing flights.

CORSIA requires airlines to offset emissions growth above 2019 levels by purchasing carbon credits. Critics argue these credits often represent low-quality offsets that do not deliver genuine emissions reductions. The price per tonne under CORSIA has been significantly lower than EU carbon allowances, creating a weaker incentive to reduce fuel consumption.

If the Commission finds CORSIA inadequate, it will propose legislation to extend the EU ETS to all flights leaving European airports. That proposal would then need approval from member states and the European Parliament. Given strong environmental sentiment in Brussels, passage seems likely if the Commission recommends expansion.

The political context matters. Several EU member states want faster climate action. Others worry about economic impacts on their aviation sectors. The balance between these positions will influence both the Commission’s assessment and subsequent legislative negotiations.

Meanwhile, ICAO is under pressure to strengthen CORSIA to avoid regional fragmentation. If the UN body announces significant improvements before 2026, the Commission might decide expansion is unnecessary. However, reaching global consensus on stronger rules has proven difficult in previous negotiations.

UK businesses cannot wait until 2026 to consider the implications. Planning cycles for freight contracts, travel policies, and logistics networks often extend two to three years. Decisions made now will determine flexibility to respond when the EU announces its position.

The outcome will also affect UK climate policy. Although Britain is no longer part of the EU ETS, the government is developing its own emissions trading system. How Brussels handles aviation will influence UK decisions about whether to align with European rules or pursue a different approach.

For practical purposes, businesses should model scenarios based on both outcomes. If CORSIA remains unchanged and the EU expands its scheme, what does that mean for your air freight costs and business travel budgets? If CORSIA strengthens instead, how does that affect operations? Either way, carbon costs for aviation are heading upward.

The expansion debate also highlights the broader challenge of managing carbon compliance across multiple jurisdictions. As different regions adopt different approaches, businesses operating internationally face increasing complexity in tracking, reporting, and paying for emissions. Building internal systems to manage this now will ease the burden as regulations evolve.

Official guidance and technical details on emissions trading

Businesses looking for detailed information on how the EU ETS applies to aviation should consult the European Commission’s climate action directorate. The official guidance on reducing emissions from aviation explains current rules and planned changes.

The European Parliament’s summary of the 2023 ETS revision sets out the legal framework that extended the stop-the-clock provision to 2027. This document explains the triggers that would bring non-CORSIA flights into the scheme automatically.

ICAO publishes regular updates on CORSIA implementation across different states. The CORSIA information portal shows which countries have committed to the offsetting scheme and tracks progress on implementation. This helps businesses understand which routes might face EU carbon charges after 2027 if CORSIA coverage remains incomplete.

For UK-specific context on carbon pricing and emissions reporting, the Department for Energy Security and Net Zero provides guidance on how British climate policy intersects with European rules. Although the UK has left the EU, British businesses operating in European markets must comply with EU carbon regulations on flights within or departing from European airports.

Trade associations including Airlines UK and the British International Freight Association publish regular briefings on how regulatory changes affect their members. These industry perspectives complement official sources and often include practical guidance on compliance and cost management.