Traffic at airports operated by BAA rose last month with London Heathrow enjoying its busiest December ever in terms of both passenger numbers and cargo which grew for the first time since February 2011 on an underlying basis.

BAA, which is Britain’s biggest airport operator, said on Wednesday that its airports carried just under 8.1 million passengers in December.

That represents an annual increase of 0.6 percent once adjusted to exclude the impact of exceptional events such as heavy snow in late 2010, and was better than November and October when passenger numbers shrank on an underlying basis.

Heathrow, Europe’s busiest hub, with top airlines flying to the top destination around the world, reported an underlying increase in December passenger numbers of 2.8 percent which was the strongest rate since June 2011.

British Airways, Virgin Atlantic, Qatar Airways and Air India are a few of the top airlines that operate from Heathrow Airport to top destinations such as flights to India, flights to Dubai, flights to Australia, flights to USA, flights to Amritsar and much more.

BAA, which also owns London Stansted, Southampton and Scottish airports including Edinburgh, said that for 2011 as a whole the underlying passenger growth at its airports stood at 0.9 percent.

The company noted, however, that there were 476,197 flights at Heathrow last year, representing 99.2 percent of the airport’s limit and again made the case for lifting the government’s block on building an additional runway there.

“Heathrow is central to developing our trade links with fast-growing emerging markets. Capacity constraints are damaging the UK economy today when the country can least afford it,” BAA chief executive Colin Matthews said in a statement.

He noted that a new hub in the south east of England had been proposed but said it could take decades to deliver.

“During this time we would be handing over on a plate the UK’s historic trade advantages to our European competitors.”

BAA noted that Paris and Frankfurt now have 1,000 more flights each year to the three biggest Chinese cities than London does.

The company, already forced by competition regulators to sell London Gatwick airport, is now in the process of selling Edinburgh too in order to reduce its dominance in Scotland.