Stansted airport has seen a 7.6% rise in passenger numbers with nearly 1.82 million people passing through the airport last month compared with May 2013.
The announcement of passenger levels came as the Whitehall-appointed Airports Commission published its latest discussion paper entitled Utilisation Of The UK's Existing Airport Capacity.
The commission reaches no conclusions in its paper and is now seeking the views of interested parties.
The commission is also studying the so-called "Boris Island" option of a new airport in the Thames Estuary - a project favoured by London mayor Boris Johnson.
The commission is due to make its final recommendation to ministers in summer 2015 but at a date after the general election in May.
It has emerged that a brother and sister died in yesterday's pile up on the M11 in Essex.
The 53-year-old man from Holland and his 45-year-old sister from Kent were in one of five vehicles involved in the crash on the northbound carriageway near Stansted Airport.
An ITV News viewer recorded this footage of the aftermath of yesterday's M11 crash which claimed the lives of a brother and sister.
Police said the two people killed in a crash on the M11 yesterday were a brother and sister.
The crash happened near junction 8 at Birchanger yesterday afternoon. The dead pair are believed to be a 53-year-old man from the Netherlands and a 45-year-old woman from Kent.
Their family has been informed but they have not been formally identified.
They were in a Toyota car that was struck by other vehicles and collided with the rear of a Mercedes horse box, with five horses on board. The car caught light with the impact. They died at the scene.
Two people were taken to hospital. Their injuries are nor believed to be life threatening.
The driver of a lorry was arrested on suspicion of causing death by dangerous driving. The 49-year-old man from Staffordshire was questioned and later released on police bail until September 15.
Two people have been killed in a motorway pile-up involving a horse box from the famous trainer Brian Meehan's stables.
A man has been arrested on suspicion of causing death by dangerous driving following the crash on the M11 near Harlow.
The trailer carrying five horses collided with three cars and a lorry shortly after 2.15pm in a smash that left the northbound carriageway closed between junctions seven and eight.
Essex Fire and Rescue said it had to free three people trapped in cars.
Two people in a car have died and the driver and passenger in another car have been taken to hospital in Cambridgeshire.
A woman has serious internal injuries and was flown by air ambulance and a man was taken by ambulance with a head injury.
It is not yet clear if they were hurt in the crash or if any of the animals will need to be put down, but the trainer's three intended runners at Newmarket on Thursday evening were withdrawn.
The road remains closed
Aerial footage shows the multi vehicle crash on the M11 in which two people died.
Police one person has been arrested on suspicion of dangerous driving.
One of the vehicles involved was a horse box carrying a number of horses.
Two people have died in a crash on the M11 involving five vehicles.
Essex Police say a man has been arrested on suspicion of dangerous driving.
The collision happened on the northbound carriageway between junctions 7-8 Harlow to Stansted Airport junctions and involved a lorry, horse box and three cars.
The northbound carriageway will remain closed into the evening. Driers are advised to avoid the area and find alternate routes.
Emergency services have been called to the scene of a serious collision on the M11 in Essex. It happened at around 2.15pm and the road is closed northbound between junctions 7-8 and will be for some considerable time.
The collision between junction 7 for Harlow and junction 8 for Bishop's Stortford and Stansted involves a number of cars, a HGV and horse box with five horses on board.
One vehicle caught alight and there are serious injuries. One man has been flown by air ambulance to Addenbrooke's Hospital with internal injuries and another person taken by ambulance to hospital with a head injury. There are a further two casualties at the scene.