Plenty of information on the web at least for UK & US carriers:
https://www.caa.co.uk/Data-and-analy...-reports-2017/
https://www.caa.co.uk/uploadedFiles/...vices_2017.pdf
BA flew 290,505 passenger sectors in 2017, Virgin (including a subsidiary that flies to the Carribean) 21,628.
You can get all flights for a day for individual airports from sites such as flightradar24. You can cut & paste into a spreadsheet & sort by airline, etc.
The US Bureau of Transport Statistics has lots of data. Sadly they are currently shut down thanks to Pres Trump.