Despite growing recognition of the material impacts of fossil fuel extraction and use, many economic sectors remain highly dependent on these fuels. Amid growing pressure to - at a minimum - appear to be doing something, businesses increasingly communicate the actions they (seek to) take to reduce their environmental impacts. Oftentimes they aim to build a sense of compatible coexistence of the sector with particular modes of sustainability. For air transport, 'sustainable aviation' has emerged as a container term for a suite of actions proposed by sectoral actors in seeking to align the sector with social and environmental sustainability. This paper critically interrogates 'sustainable aviation' through an analysis of the websites and reports of 14 international and regional airlines. Our analysis reveals the multiple and diverse ways that dominant logics (1) underpin the status quo, (2) depend on 'the science', (3) support techno-organisational changes and (4) prioritise sectoral growth. By recognising the gendered nature of environmentalism, we suggest that 'sustainable aviation' can be viewed as an active enactment of aeromasculinities - a gendered system of thinking, being and doing which forecloses radical action and change required for a climate-safe and just energy future.