What Are The UK’s Busiest Domestic Air Routes For Each Major Carrier?

For a country that is relatively small in size, the UK has its fair share of domestic air routes. According to data fromCirium, an aviation analytics company, there are almost 600 million available seat miles (ASMs) scheduled for April 2024 on more than 18,500 UK domestic flights. Collectively, these services offer more than 2.2 million seats, but which routes have the most capacity for each major airline?