European Commission Allocates Over €400 Million in EU ETS Allowances to Airlines for 2025 Sustainable Aviation Fuel Use

On 8 September 2026 the European Commission adopted a Decision allocating approximately 5.2 million EU ETS allowances (worth ~€430 million) to 130 airline operators as support for their use of sustainable aviation fuels (SAF) in 2025, under the dedicated SAF support mechanism established by the EU ETS Directive in 2023 and operational since 2024.

This is the second annual implementation of a novel carbon-market design feature that grants free EU ETS allowances specifically to incentivize SAF uptake in aviation, supplementing the standard cap-and-trade surrender obligation with a targeted subsidy mechanism. The 2025 allocation is over four times larger than 2024's, and the Commission has separately proposed expanding the mechanism by 110 million additional allowances (~€15 billion) as part of the broader EU ETS review, signalling a significant scaling of carbon-market-funded decarbonization support for aviation.

This event represents a distinctive carbon market design innovation: rather than relying solely on the EU ETS price signal to drive fuel switching, the Commission is directly allocating free allowances to reward SAF uptake, effectively subsidizing the price differential between fossil kerosene and SAF through the carbon market's own allowance pool. This blurs the line between pure cap-and-trade and targeted industrial policy, redistributing allowance value (which would otherwise be auctioned) toward decarbonization incentives in a hard-to-abate sector. The scale of expansion proposed (110 million additional allowances, ~€15 billion) under the 2026 ETS review suggests this mechanism could become a much larger structural feature of the EU ETS, with implications for total allowance supply, auction revenue, and the free-allocation share of the cap. Market participants should watch how this affects overall EU ETS allowance scarcity and price formation, as diverting allowances to SAF support reduces auctioned supply elsewhere, while participants in aviation and SAF production markets gain a growing, transparent (published) support price mechanism that could shift fuel procurement economics.

EU ETS Directive (2023 amendment establishing SAF support mechanism); Regulation (EU) 2025/723

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