Heathrow recorded a 2.2% rise in passengers to 75 million in 2015.
This helped fuel a 2.7% increase in revenue to £2.7 billion and earnings [EBITDA] up 3% to £1.6 billion
Garuda Airlines is to shift its London service to Jakarta from rival Gatwick next month, following Vietnam Airlines and Air China.
But the west London hub warned that demand to fly from Heathrow continues to outstrip the supply of take off and landing slots.
The airport claimed that expansion will give a £211 billion economic boost and see Heathrow become the world’s most sustainable hub airport.
Chief executive, John Holland-Kaye, said: “I’m confident that this summer the government will agree with its Airports Commission that expanding Heathrow is the only way to secure Britain’s long-term economic future and meet environmental demands. We stand ready to deliver.”
He added: “As we approach our 70th anniversary, our colleagues are delivering the best service we’ve ever achieved to a record number of passengers.
“We’re also making strong progress on our environmental commitments by reducing emissions and noise, and another set of robust financial results underpins our plans to make Heathrow the most sustainable hub airport and the UK the best connected country in the world.”