Heathrow Ltd, previously known as BAA, booked an 11.6 percent increase in earnings in 2012 as it raised charges on airlines using its UK airports.
Adjusted earnings before interest, tax, depreciation and amortization grew to £1.26 billion ($1.95 billion) from £1.13 billion ($1.75 billion) in 2011 on revenue up 8.1 percent at £2.46 billion ($3.8 billion).
Cargo traffic, concentrated at London Heathrow and London Stansted, slipped 0.1 percent to 1.7 million tons and passenger numbers were unchanged at 87.4 million.
Heathrow’s freight traffic fell 1.3 percent to 1.46 million tons, but Stansted was 5.3 percent higher at just over 215,000 tons.
Airport tariffs have increased by 12.5 percent since April 2011.
Heathrow Ltd, which last week announced a $4.65 billion five-year investment program, is selling Stansted to Manchester Airports Group for $2.3 billion in cash.