Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, if he will make an estimate of the proportion of UK greenhouse gas emissions from aviation that derived from flights where the plane was over 20 tonnes and equipped to carry fewer than 19 passengers in each of the last five years.

UK greenhouse gas emissions from aviation are compiled in the context of the UK’s Greenhouse Gas Inventory and this data is published annually in the UK’s greenhouse gas emissions national statistics. Emissions estimates for domestic and international aviation in each of the last five years up until 2020 can be found in tables 1.2 and 6.1 respectively, although these are not broken down by plane weight or number of passengers:

https://www.gov.uk/government/statistics/final-uk-greenhouse-gas-emissions-national-statistics-1990-to-2020.