London Gatwick Airport served 35.9 million passengers for the 2013-14 fiscal year, indicating a 4.8% increase compared with the previous year.
The increase was driven by the growth of the airport’s current carriers, as well as the continuous investment in new facilities to improve the passenger experience.
The airport also reported a turnover of £593.7m, a 10.2% increase against the 2012-13 fiscal year.
London Gatwick CEO Stewart Wingate said: "Gatwick’s record performance and growth to around 36 million passengers this year demonstrates how we are successfully competing in the London market and why we are best-placed to deliver the UK’s next new runway.
"Airlines and passengers are increasingly choosing to fly from Gatwick and this growth is expected to continue. And despite getting busier and handling growing numbers of passengers, we remain the top London airport for passenger satisfaction.
"Expansion at Gatwick would ensure London can effectively compete with its European neighbours and provide essential air links that the UK needs to both established and emerging markets."
During the fiscal year, the airport had invested a total of £201m, including an investment to transform the departure lounge in the South Terminal.