civil aviation authority shows 238m passengers passed through british airports in 2014 .
as it has been for more than 25 years , with its more than 34 million journeys in 2014 over double that of the next most popular , the united states .
new figures from the uk civil aviation authority shows 238m in 2007 and 10m more -lrb- a 4.4 per cent rise -rrb- than 2013 .