We produce two tables in which you can find this information. For international routes, table 12.1, this includes passengers travelling worldwide on a flight either to/from a UK reporting airport. For domestic routes, table 12.2, which was introduced with effect from June 2001. Information is not available prior to this time.
Note: passengers travelling both from and to the UK would be counted as 2 passengers.
For more detail than provided in these tables (e g broken down by airline or with an arrival/departure split) please contact us.