Heathrow Airport in London has reported its busiest year ever in the 12 months to December 31st, with 73.4 million passengers served, an increase of 1.4 per cent. However, with capacity limited at the airport, there was no real growth in flights last year. Heathrow also recorded a strong financial performance for the year, with revenue up 8.8 per cent to £2.7 billion and EBITDA up 10.3 per cent to £1.57 billion.