ReplyData on aircraft movements at UK airports is collected and published by the Civil Aviation Authority (CAA). CAA aircraft movement data includes a ‘military’ category, but a split between arriving and departing flights is not provided.Although Royal Air Force (RAF) Northolt does handle some civil flight movements, this is an RAF establishment, and data on aircraft movements at RAF Northolt is not collected by the CAA.Data on the total number of aircraft movements at Heathrow, split by military and non-military, is provided in Table 03_1 of the annual CAA airport data publication and reproduced as Table 1 below. The last three complete years for which figures are available are 2022, 2023 and 2024.Table 1: Aircraft movements at Heathrow Airport split by military and non-militaryYearMilitaryNon-militaryTotal20220380,305380,30520237456,593456,60020245476,114476,119 Note: Non-military category includes commercial, test and training, private, official and business aviation movements.Source: https://www.caa.co.uk/data-and-analysis/uk-aviation-market/airports/uk-airport-data/