The major security alert at London Heathrow last month cost BA £40m. The airline said the figure included lost revenue and the increased cost of accommodation, catering and baggage repatriation.
It said the disruption, which forced it to cancel nearly 1,300 flights, is still having an impact on its bookings.
"The overall level of bookings has returned to levels experienced last year, but is still weaker than the trend of the past few months.
"The recovery of premium and non-premium transfer traffic, for example, is lagging due to the limitations on carry on baggage at London," BA said.
Increased security restrictions at UK airports are still are still in force with passengers allowed to take only one item of hand baggage of a set size on board.
There are still rigorous security checks at Heathrow, including the requirement for passengers to remove their shoes. Airlines are advising passengers arrive a "minimum" of two hours before take off.
With less severe restrictions at continental hubs, BA is understood to be losing custom to rivals at Paris, Amsterdam and Frankfurt airports.
BAA, which runs Heathrow along with six other UK airports, has dismissed calls for its break up.
BA had led the demand with a call that Heathrow and London Stansted, also run by BAA, should be under separate ownership.
But BAA said a "more fragmented ownership" would "undermine vitally needed investment in airport capacity."
Stephen Nelson, BAA's ceo, said the biggest problem facing UK air travellers was the shortage of airport capacity and failure to build more would lead to "gridlock."
He added: "Despite this, some airlines want to break up BAA and impose even heavier price regulation. This have-it-both-ways proposal would be a poisonous cocktail for consumers.
"It risks setting back the much needed investment programme which BAA is pursuing, to transform London's airports through projects like Heathrow Terminal 5, Heathrow East and the Stansted second runway."
Accor reports pre-tax leap in profits
French hotel group Accor reported a 54.3% leap in net profits from 156m to 241m for the first six months of 2006.
The group said its operating profits before tax rose by 37.7% from 206m to 282m for the same period.
The rise in net profits included a 129 million capital gain from the sale of 68 hotels to Foncière des Murs during the period.
The group said its objective for the full year was an operating income before tax and non-recurring items of 680 million to 700 million, an increase of more than 20% from the 569 million in 2005.
It said it planned the "further divestment" of non-strategic investments in 2007-2008 to raise more than 500m, to sustain organic growth of 8% to 16% a year and to spend 500m in expansion investments by 2010.
To achieve this, the group said it would create of a new brand for non-standardised economy hotels in Europe, reposition its Sofitel brand, relaunch the Formule 1, Ibis and Novotel brands, do a strategic review of Red Roof Inn, step up property disposals, totaling more than 3.2bn by 2008, launch three key business projects in Europe and open 200,000 new rooms by 2010.
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