The latest passenger figures highlight the rapidly rising demand for air travel across the South East of England.
In response, LLA is currently investing £110m to transform the airport and increase capacity by 50% to 18 million passengers per year by 2020.
Looking further ahead, plans have also been confirmed for a £200m light rail link to replace the current shuttle bus between Luton Airport Parkway and the terminal.
Once complete, the journey from London St Pancras to the terminal door will take less than 30 minutes, bringing LLA closer to central London than both Gatwick and Stansted.
Nick Barton, CEO of LLA, said: “The Summer holiday period is now in full swing. These latest figures show that more people are choosing to travel through LLA than ever before.
“To make the Summer getaway as easy as possible for travellers, we are employing additional staff, offering two hours free parking in the long-term car park, extending our free Wi-Fi service and installing device charge points.
“In the longer term, our £110m redevelopment project will expand our security and immigration areas, introduce a host of new shopping and dining options and deliver major transport upgrades make travel through LLA quicker and easier.”
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